Clean up some output, check for errors from the versioner. Test: tools/update_headers.sh Bug: None Change-Id: Ib398b534a9a8ee6dc6a2b4d90747f628aa911bab
Test: ./update_headers.sh Bug: None Change-Id: Ibde1e6d7ef1750d8369b65b3125b55023efb5b2a
Test: ./update_headers.sh Bug: http://b/30465923 Change-Id: I888a1ec0c4f26134845583a03bbaad88fa17afa0