[gdm] greeter: add support for /etc/system-release file

[Ray Strode <halfline src gnome org>]

commit ac6c97e3bc19a68401b225a52d441c5c907d7b8c
Author: Ritesh Khadgaray <ritz redhat com>
Date:   Thu Dec 9 10:46:39 2010 -0500

    greeter: add support for /etc/system-release file
    
    This is analagous to /etc/redhat-release and all
    the others.

 gui/simple-greeter/gdm-greeter-login-window.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gui/simple-greeter/gdm-greeter-login-window.c b/gui/simple-greeter/gdm-greeter-login-window.c
index 0823a3c..6760c8b 100644
--- a/gui/simple-greeter/gdm-greeter-login-window.c
+++ b/gui/simple-greeter/gdm-greeter-login-window.c
@@ -1116,6 +1116,7 @@ static const char *known_etc_info_files [] = {
         "debian_version",
         "mandriva-release",
         "slackware-version",
+        "system-release",
         NULL
 };