Add decorations to bot names for modifying parts of try sets.

scripts/master/try_job_base.py

Index: scripts/master/try_job_base.py
===================================================================
--- scripts/master/try_job_base.py	(revision 113846)
+++ scripts/master/try_job_base.py	(working copy)
@@ -72,12 +72,13 @@
     try_int('patchset')
     try_int('issue')
 
-    builder_names = []
+    build_names = []

[M-A Ruel, 2011/12/09 21:50:29]

Why build_names? It's confusing. It's not the name of a build but of a builder.

[Peter Mayo, 2011/12/10 01:08:27]

But it's not always the name of a builder.  win is the name of a builder, but
win:compile is not.  I think builder would be misleading.  Build has too many
meanings in this context, but was the best I could think of - another alternate?

[M-A Ruel, 2011/12/12 20:46:58]

Personally, I wouldn't touch this file at all in this CL.

     if 'bot' in options:
-      builder_names = options.get('bot', '').split(',')
-    options['bot'] = self.pools.Select(builder_names, options['project'])
+      build_names = options.get('bot', '').split(',')
+    options['bot'] = self.pools.Select(build_names, options['project'])
+    bot_names = [b.split(':')[0] for b in options['bot']]

[M-A Ruel, 2011/12/09 21:50:29]

I'd keep the log intact, it's more informative.

[Peter Mayo, 2011/12/10 01:08:27]

Interesting, then chose is often the wrong verb.

     log.msg(
-        'Choose %s for job %s' % (','.join(options['bot']), options['reason']))
+        'Chose %s for job %s' % (','.join(bot_names), options['reason']))
     return options
 
   def get_props(self, options):