[glib] Correct to docs for g_strcmp0

[Matthias Clasen <matthiasc src gnome org>]

commit 7c045e34238b9c9280bc77529f952ae5b8b581f2
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Sep 30 13:37:39 2012 -0400

    Correct to docs for g_strcmp0
    
    Don't promise to return -1 or 1 - we fall back to strcmp which
    does not guarantee this.
    https://bugzilla.gnome.org/show_bug.cgi?id=685037

 glib/gtestutils.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/glib/gtestutils.c b/glib/gtestutils.c
index f0e8f6c..0b6cdd1 100644
--- a/glib/gtestutils.c
+++ b/glib/gtestutils.c
@@ -1973,11 +1973,11 @@ g_assertion_message_error (const char     *domain,
  * @str1: (allow-none): a C string or %NULL
  * @str2: (allow-none): another C string or %NULL
  *
- * Compares @str1 and @str2 like strcmp(). Handles %NULL 
+ * Compares @str1 and @str2 like strcmp(). Handles %NULL
  * gracefully by sorting it before non-%NULL strings.
  * Comparing two %NULL pointers returns 0.
  *
- * Returns: -1, 0 or 1, if @str1 is <, == or > than @str2.
+ * Returns: an integer less than, equal to, or greater than zero, if @str1 is <, == or > than @str2.
  *
  * Since: 2.16
  */