feat(tvl.el): Make target branch configurable r/2746

I'm using gerrit at work now, and would like to use tvl.el to interact
with it via Emacs, but we use a different default branch than "canon".
This makes it configurable, and also marks it as safe so I can configure
it in .dir-locals.el

Change-Id: I66d4c7ce94351f2df863ec49dbc3e1d1d6d1547a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3369
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>

0 files changed, 0 insertions, 0 deletions