[gdm] Properly restore CTYPE when canonicalizing codeset

[Ray Strode <halfline src gnome org>]

commit 5948d9eb0df6c2b4013b92ecf206500cc91ac430
Author: Ray Strode <rstrode redhat com>
Date:   Thu Oct 8 22:27:52 2009 -0400

    Properly restore CTYPE when canonicalizing codeset
    
    Spotted by Takao Fujiwara

 gui/simple-greeter/gdm-languages.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gui/simple-greeter/gdm-languages.c b/gui/simple-greeter/gdm-languages.c
index b8c6987..8f898f1 100644
--- a/gui/simple-greeter/gdm-languages.c
+++ b/gui/simple-greeter/gdm-languages.c
@@ -222,9 +222,9 @@ make_codeset_canonical_for_locale (const char  *name,
 {
         char *old_locale;
 
-        old_locale = setlocale (LC_CTYPE, name);
+        old_locale = setlocale (LC_CTYPE, NULL);
 
-        if (old_locale == NULL) {
+        if (setlocale (LC_CTYPE, name) == NULL) {
                 return;
         }