Changed the step name for wait_for_any.py to include only one revision.

scripts/slave/recipe_modules/auto_bisect/bisector.py

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import re
 
 from . import bisect_results
 from . import depot_config
 
 _DEPS_SHA_PATCH = """
@@ skipping 380 matching lines @@
       for revision in revision_list:
         revision.update_status()
 
   def sleep_until_next_revision_ready(self, revision_list):
     """Produces a single step that sleeps until any revision makes progress.
 
     A revision is considered to make progress when a build file is uploaded to
     the appropriate bucket, or when buildbot test job is complete.
     """
     gsutil_path = self.api.m.gsutil.get_gsutil_path()
-    name = 'Waiting for any of these revisions:' + ' '.join(
-        [r.revision_string for r in revision_list])
+    name = 'Waiting for revision ' + revision_list[0].revision_string
+    if len(revision_list) > 1:
+      name += ' and %d other revision(s).' % (len(revision_list) - 1)
     script = self.api.resource('wait_for_any.py')
     args_list = [gsutil_path]
     url_list = [r.get_next_url() for r in revision_list]
     args_list += [url for url in url_list if url and url is not None]
     self.api.m.python(str(name), script, args_list)
 
   def wait_for_any(self, revision_list):
     """Waits for any of the revisions in the list to finish its job(s)."""
     while True:
       if not revision_list or not any(
@@ skipping 43 matching lines @@
     return 'linux_perf_tester'
 
   def get_builder_bot_for_this_platform(self):
     # TODO: Actually look at the current platform.
     return 'linux_perf_bisect_builder'
 
   def get_platform_gs_prefix(self):
     # TODO: Actually check the current platform
     return 'gs://chrome-perf/Linux Builder/full-build-linux_'