It will help catch issues like the one we are getting on linux_chromeos where
the ordering of the solution is now by name, causing the default solution to be
used for --revision being the wrong one.

R=dpranke@chromium.org
BUG=
TEST=


Review URL: http://codereview.chromium.org/8276020

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@105387 0039d316-1c4b-4281-b951-d872f2087c98