Change header comment
diff --git a/src/hb-blob.c b/src/hb-blob.c
index 3afad8a..c5f8726 100644
--- a/src/hb-blob.c
+++ b/src/hb-blob.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-blob.h b/src/hb-blob.h
index 131a282..d13bb0d 100644
--- a/src/hb-blob.h
+++ b/src/hb-blob.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-buffer-private.h b/src/hb-buffer-private.h
index 821a481..c2bd885 100644
--- a/src/hb-buffer-private.h
+++ b/src/hb-buffer-private.h
@@ -2,7 +2,7 @@
  * Copyright (C) 1998-2004  David Turner and Werner Lemberg
  * Copyright (C) 2004,2007,2009  Red Hat, Inc.
  *
- * This is part of HarfBuzz, an OpenType Layout engine library.
+ * This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-buffer.c b/src/hb-buffer.c
index 4dd18ed..ac6b47d 100644
--- a/src/hb-buffer.c
+++ b/src/hb-buffer.c
@@ -2,7 +2,7 @@
  * Copyright (C) 1998-2004  David Turner and Werner Lemberg
  * Copyright (C) 2004,2007  Red Hat, Inc.
  *
- * This is part of HarfBuzz, an OpenType Layout engine library.
+ * This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-buffer.h b/src/hb-buffer.h
index 0bceada..d1772d4 100644
--- a/src/hb-buffer.h
+++ b/src/hb-buffer.h
@@ -2,7 +2,7 @@
  * Copyright (C) 1998-2004  David Turner and Werner Lemberg
  * Copyright (C) 2004,2007,2009  Red Hat, Inc.
  *
- * This is part of HarfBuzz, an OpenType Layout engine library.
+ * This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-common.h b/src/hb-common.h
index 25249cc..a2bc114 100644
--- a/src/hb-common.h
+++ b/src/hb-common.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2007,2008,2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-font-private.h b/src/hb-font-private.h
index 4293b7e..65e54c9 100644
--- a/src/hb-font-private.h
+++ b/src/hb-font-private.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-font.cc b/src/hb-font.cc
index b284477..e1b0b87 100644
--- a/src/hb-font.cc
+++ b/src/hb-font.cc
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-font.h b/src/hb-font.h
index 532d3f5..fee8ada 100644
--- a/src/hb-font.h
+++ b/src/hb-font.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-ft.c b/src/hb-ft.c
index fb8e566..18b6e0b 100644
--- a/src/hb-ft.c
+++ b/src/hb-ft.c
@@ -2,7 +2,7 @@
  * Copyright (C) 2009  Red Hat, Inc.
  * Copyright (C) 2009  Keith Stribley <[email protected]>
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-ft.h b/src/hb-ft.h
index b73a02c..8930804 100644
--- a/src/hb-ft.h
+++ b/src/hb-ft.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-glib.c b/src/hb-glib.c
index 604c7dd..f1497d9 100644
--- a/src/hb-glib.c
+++ b/src/hb-glib.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-glib.h b/src/hb-glib.h
index d7b9c15..76f7676 100644
--- a/src/hb-glib.h
+++ b/src/hb-glib.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-icu.c b/src/hb-icu.c
index 2b28aa1..8e4ef94 100644
--- a/src/hb-icu.c
+++ b/src/hb-icu.c
@@ -2,7 +2,7 @@
  * Copyright (C) 2009  Red Hat, Inc.
  * Copyright (C) 2009  Keith Stribley <[email protected]>
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-icu.h b/src/hb-icu.h
index ca8031c..cdb55b4 100644
--- a/src/hb-icu.h
+++ b/src/hb-icu.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-language.c b/src/hb-language.c
index 07ff347..ff25d7b 100644
--- a/src/hb-language.c
+++ b/src/hb-language.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-language.h b/src/hb-language.h
index e93a112..d366cad 100644
--- a/src/hb-language.h
+++ b/src/hb-language.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-object-private.h b/src/hb-object-private.h
index b371d73..610ae68 100644
--- a/src/hb-object-private.h
+++ b/src/hb-object-private.h
@@ -2,7 +2,7 @@
  * Copyright (C) 2007 Chris Wilson
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-open-file-private.hh b/src/hb-open-file-private.hh
index c4b362f..091d994 100644
--- a/src/hb-open-file-private.hh
+++ b/src/hb-open-file-private.hh
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2007,2008,2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-open-type-private.hh b/src/hb-open-type-private.hh
index 0cdffbd..7079862 100644
--- a/src/hb-open-type-private.hh
+++ b/src/hb-open-type-private.hh
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2007,2008,2009,2010  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-ot-layout-common-private.hh b/src/hb-ot-layout-common-private.hh
index 55ecc51..9651d4e 100644
--- a/src/hb-ot-layout-common-private.hh
+++ b/src/hb-ot-layout-common-private.hh
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2007,2008,2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-ot-layout-gdef-private.hh b/src/hb-ot-layout-gdef-private.hh
index d9b0005..0122fcc 100644
--- a/src/hb-ot-layout-gdef-private.hh
+++ b/src/hb-ot-layout-gdef-private.hh
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2007,2008,2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-ot-layout-gpos-private.hh b/src/hb-ot-layout-gpos-private.hh
index 8f9b9e5..bebde66 100644
--- a/src/hb-ot-layout-gpos-private.hh
+++ b/src/hb-ot-layout-gpos-private.hh
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2007,2008,2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-ot-layout-gsub-private.hh b/src/hb-ot-layout-gsub-private.hh
index b77aba8..1a49edb 100644
--- a/src/hb-ot-layout-gsub-private.hh
+++ b/src/hb-ot-layout-gsub-private.hh
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2007,2008,2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-ot-layout-gsubgpos-private.hh b/src/hb-ot-layout-gsubgpos-private.hh
index aea849a..5d19c7e 100644
--- a/src/hb-ot-layout-gsubgpos-private.hh
+++ b/src/hb-ot-layout-gsubgpos-private.hh
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2007,2008,2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-ot-layout-private.h b/src/hb-ot-layout-private.h
index fb7bfe4..a9d4c57 100644
--- a/src/hb-ot-layout-private.h
+++ b/src/hb-ot-layout-private.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2007,2008,2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-ot-layout.cc b/src/hb-ot-layout.cc
index 4a17af2..22f31f4 100644
--- a/src/hb-ot-layout.cc
+++ b/src/hb-ot-layout.cc
@@ -3,7 +3,7 @@
  * Copyright (C) 2006  Behdad Esfahbod
  * Copyright (C) 2007,2008,2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-ot-layout.h b/src/hb-ot-layout.h
index c65b059..d8c862b 100644
--- a/src/hb-ot-layout.h
+++ b/src/hb-ot-layout.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2007,2008,2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-ot-shape-private.h b/src/hb-ot-shape-private.h
index bece36d..1183a63 100644
--- a/src/hb-ot-shape-private.h
+++ b/src/hb-ot-shape-private.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-ot-shape.c b/src/hb-ot-shape.c
index 795fd54..f535183 100644
--- a/src/hb-ot-shape.c
+++ b/src/hb-ot-shape.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-ot-tag.c b/src/hb-ot-tag.c
index dc92f1e..9597b7f 100644
--- a/src/hb-ot-tag.c
+++ b/src/hb-ot-tag.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-ot-tag.h b/src/hb-ot-tag.h
index 72896af..2dab2e8 100644
--- a/src/hb-ot-tag.h
+++ b/src/hb-ot-tag.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-ot.h b/src/hb-ot.h
index eab888e..51cc4aa 100644
--- a/src/hb-ot.h
+++ b/src/hb-ot.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-private.h b/src/hb-private.h
index 1c52744..0f3484e 100644
--- a/src/hb-private.h
+++ b/src/hb-private.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2007,2008,2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-shape.c b/src/hb-shape.c
index cde599d..a3315bb 100644
--- a/src/hb-shape.c
+++ b/src/hb-shape.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-shape.h b/src/hb-shape.h
index 714fe97..621c6ab 100644
--- a/src/hb-shape.h
+++ b/src/hb-shape.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-unicode-private.h b/src/hb-unicode-private.h
index 1a970b4..ba530d2 100644
--- a/src/hb-unicode-private.h
+++ b/src/hb-unicode-private.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-unicode.c b/src/hb-unicode.c
index a897f23..e155d6d 100644
--- a/src/hb-unicode.c
+++ b/src/hb-unicode.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb-unicode.h b/src/hb-unicode.h
index 6b63352..dc70bd1 100644
--- a/src/hb-unicode.h
+++ b/src/hb-unicode.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/hb.h b/src/hb.h
index f556553..905fd7b 100644
--- a/src/hb.h
+++ b/src/hb.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
diff --git a/src/main.cc b/src/main.cc
index 23d1e82..0251759 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2007,2008,2009  Red Hat, Inc.
  *
- *  This is part of HarfBuzz, an OpenType Layout engine library.
+ *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this