[glib] Fix grammar in error message

[Christian Persch <chpe src gnome org>]

commit 37bd225d7b28e12fd78344d07e656cc2ff0d8d75
Author: Christian Persch <chpe gnome org>
Date:   Tue May 27 23:45:08 2008 +0200

    Fix grammar in error message
    
    Bug #583198.
---
 glib/gkeyfile.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/glib/gkeyfile.c b/glib/gkeyfile.c
index 16939a9..0ae2587 100644
--- a/glib/gkeyfile.c
+++ b/glib/gkeyfile.c
@@ -1526,7 +1526,7 @@ g_key_file_get_string_list (GKeyFile     *key_file,
           g_set_error (error, G_KEY_FILE_ERROR,
                        G_KEY_FILE_ERROR_INVALID_VALUE,
                        _("Key file contains key '%s' "
-                         "which has value that cannot be interpreted."),
+                         "which has a value that cannot be interpreted."),
                        key);
           g_error_free (key_file_error);
         }