cros_util: fix up naming

Since these two scripts are tracking upstream Chrome OS repos,
fixing naming is a bit harder. This patch creates a variable to
hold the name of the main branch, so it's easier to fix these
files in case any future name fixing on upstream.

Also run `yapf` during presubmit.


Change-Id: Ic72a213dadf12b382a76fe50d48cde6fcecc3b25
Reviewed-by: Caroline Tice <>
Commit-Queue: Tiancong Wang <>
Tested-by: Tiancong Wang <>
2 files changed