Fix push-to-trunk runtime call.

This broke after a recent refactoring.

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/76193002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17878 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

tools/push-to-trunk/push_to_trunk.py

@@ -548,7 +548,7 @@ def Main():
   if not ProcessOptions(options):
     parser.print_help()
     return 1
-  RunScript(CONFIG, options)
+  RunPushToTrunk(CONFIG, options)
 
 if __name__ == "__main__":
   sys.exit(Main())