Spelling fixes, spotted by Stuart Brady.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4809 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/cpu-exec.c b/cpu-exec.c
index 08e10f4..6b46bd2 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -620,7 +620,7 @@
                     next_tb = tcg_qemu_tb_exec(tc_ptr);
                     env->current_tb = NULL;
                     if ((next_tb & 3) == 2) {
-                        /* Instruction counter exired.  */
+                        /* Instruction counter expired.  */
                         int insns_left;
                         tb = (TranslationBlock *)(long)(next_tb & ~3);
                         /* Restore PC.  */