It doesn't work when '--' is not part of the command line. It executed "gtest-parallel gtest-parallel-wrapper.py executable_name" instead of "gtets-parallel executable_name". NOTRY=True TBR=kjellander@webrtc.org BUG=None Review-Url: https://codereview.webrtc.org/2982133002 Cr-Commit-Position: refs/heads/master@{#19077}