* normal/completion.c (iterate_dir): Skip `.' and `..' directories.

diff -urp -x CVS grub2/normal/completion.c grub2.completion/normal/completion.c
--- grub2/normal/completion.c	2007-09-03 22:28:24.000000000 +0200
+++ grub2.completion/normal/completion.c	2008-01-04 13:11:49.000000000 +0100
@@ -138,7 +138,7 @@ iterate_dir (const char *filename, int d
       if (add_completion (filename, prefix, GRUB_COMPLETION_TYPE_FILE))
 	return 1;
     }
-  else
+  else if (grub_strcmp (filename, ".") && grub_strcmp (filename, ".."))
     {
       char fname[grub_strlen (filename) + 2];