Fix chromium committer list specification.

BUG=511311,524505
R=tandrii@chromium.org

Review URL: https://codereview.chromium.org/1317653002 .

git-svn-id: svn://svn.chromium.org/blink/trunk@201137 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/infra/config/cq.cfg

@@ -19,7 +19,7 @@ rietveld {
 
 verifiers {
   reviewer_lgtm {
-    committer_list: "project-chromium-committers"
+    committer_list: "external/project-chromium-committers"
   }
 
   tree_status {