Adding *.pm and *.pl files to the list searched by 'git gs'.
Adding *.pm and *.pl files to the list searched by 'git gs'.

BUG=155016

Review URL: https://chromiumcodereview.appspot.com/11028112

git-svn-id: bd64dd6fa6f3f0ed0c0666d1018379882b742947@161109 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

svn2github/chromium-depot-tools,svn2github/chromium-depot-tools,svn2github/chromium-depot-tools