RunCommand: Make the stdout reader thread a daemon thread and don't wait.

This means we shouldn't wait for this thread to exit (and thus might loose some
stdout).

BUG=522396
R=jam,dpranke,phajdan.jr

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=300319

Review-Url: https://codereview.chromium.org/1929703004

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/build@300422 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed