Add some debugging to buildbot_globals, sort the trybot list

R=epoger@google.com, rmistry@google.com

Review URL: https://codereview.chromium.org/99223002

git-svn-id: http://skia.googlecode.com/svn/trunk@12437 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tools/submit_try b/tools/submit_try
index da9292a..840a064 100755
--- a/tools/submit_try
+++ b/tools/submit_try
@@ -172,7 +172,7 @@
     if arg == '-h' or arg == '--help':
       Error()
     elif arg == '-l' or arg == '--list_bots':
-      format_args = ['\n  '.join(trybots)] + ALL_ALIASES
+      format_args = ['\n  '.join(sorted(trybots))] + ALL_ALIASES
       print (
 """
 submit_try: Available builders:\n  %s