Create new branch at origin/master, don't specify -r in git cl try

If I currently have a branch with commits checked out,
upload_revision.py will create a branch from that.

The "-r" flag doesn't work for me, omitting it does work. Given that the
new branch is directly branched off of origin/master, `git cl try`
should work without the "-r" flag.

Change-Id: I54e66b3318a8d0548cda63b2906d206db0d02987
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2101533
Auto-Submit: Arthur Eubanks <aeubanks@google.com>
Commit-Queue: Nico Weber <thakis@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#750195}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: ec6c23a19f96d1315a3422ffa36f92a2f696e242
1 file changed