DM: move --match check earlier to fix the "N GMs x M configs" log line.

BUG=
R=bsalomon@google.com

Author: mtklein@google.com

Review URL: https://codereview.chromium.org/44443002

git-svn-id: http://skia.googlecode.com/svn/trunk@11963 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed