pylintrc: disable score reports

Pylint-1.7+ include a score report by default at the end of every
module lint.  We disable reports in general, so silence this too.

Bug: 866772
Change-Id: Ie3df44c80b90daa59e46c8fd37a949176c9b09a2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/1770420Reviewed-by: Robbie Iannucci <iannucci@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>

pylintrc

@@ -154,6 +154,9 @@ files-output=no
 # CHANGED:
 reports=no
 
+# Activate the evaluation score.
+score=no
+
 # Python expression which should return a note less than 10 (10 is the highest
 # note). You have access to the variables errors warning, statement which
 # respectively contain the number of errors / warnings messages and the total