Presubmit was not whitelisting libjingle_tests.gyp or sound.gyp due to a missing comma leading to a concatenation of the two strings in the whitelist.

R=kjellander@webrtc.org
TBR=niklas.enbom@webrtc.org
BUG=N/A

Review URL: https://webrtc-codereview.appspot.com/25999004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7614 4adac7df-926f-26a2-2b94-8c16560cd09d