Make the sharding supervisor print what commands in runs in a shard

Make the sharding supervisor print what commands in runs in a shard

e.g. http://build.chromium.org/p/chromium/builders/Linux%20Tests%20x64/builds/24938/steps/browser_tests/logs/stdio lacks some output at the end, and I'd like to know which tests are supposed to be there

BUG=none
TEST=none


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=149816

[jochen (gone - plz use gerrit), 2012-08-01 13:35:09]

plz review

[jam, 2012-08-01 20:24:29]

I'm not familiar with this script, so removing myself as a reviewer.

[jochen (gone - plz use gerrit), 2012-08-02 14:13:19]

-maruel
+nsylvain

can you please review?

[nsylvain, 2012-08-02 15:46:55]

lgtm

[commit-bot: I haz the power, 2012-08-03 07:11:53]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jochen@chromium.org/10843027/1

[commit-bot: I haz the power, 2012-08-03 08:29:42]

Change committed as 149816