rename: sgs_dd-->sgh_dd; retrieve sgs_dd from archive, it has SIGIO and RT signals

git-svn-id: https://svn.bingwo.ca/repos/sg3_utils/trunk@802 6180dd3e-e324-4e3e-922d-17de1ae2f315
diff --git a/testing/sg_tst_ioctl.c b/testing/sg_tst_ioctl.c
index d0d7d15..180db0a 100644
--- a/testing/sg_tst_ioctl.c
+++ b/testing/sg_tst_ioctl.c
@@ -429,7 +429,7 @@
         else
             printf("%s: sock_fd_read() returned: %d, fd_ma=%d\n", __func__,
                    res, fd_ma);
-	/* yes it works! */
+        /* yes it works! */
     }
     return 0;
 }