[gnome-session] tools: Exit when gnome-session isn't available

[Bastien Nocera <hadess src gnome org>]

commit f9ee9c6f4fa9bc749765eb06e41a13d08645e627
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Nov 7 14:13:27 2012 +0100

    tools: Exit when gnome-session isn't available

 tools/gnome-session-inhibit.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/tools/gnome-session-inhibit.c b/tools/gnome-session-inhibit.c
index f844e36..ff9d7d7 100644
--- a/tools/gnome-session-inhibit.c
+++ b/tools/gnome-session-inhibit.c
@@ -249,7 +249,8 @@ int main (int argc, char *argv[])
   if (inhibit_flags == 0)
     inhibit_flags = GSM_INHIBITOR_FLAG_IDLE;
 
-  inhibit (app_id, reason, inhibit_flags);
+  if (inhibit (app_id, reason, inhibit_flags) == FALSE)
+    return 1;
 
   if (!no_launch)
     wait_for_child_app (argv + i);