Merge pull request #576 from Automattic/fix/phpcs-diff

Small change to phpcs-diff

Author: cojennin

bin/phpcs-diff.sh

@@ -6,7 +6,7 @@ PHPCS_FILE=$(mktemp)
 
 git remote set-branches --add origin master
 git fetch
-git diff -- '*.php' origin/master.. > $DIFF_FILE
+git diff origin/master > $DIFF_FILE
 
 $DIR/../vendor/bin/phpcs --extensions=php --standard=phpcs.xml.dist --report=json > $PHPCS_FILE || true