The command "git branch -a | grep -q ${branch}" may not exit with 0 when pipefail is set. "grep -q" exits immediately with exit code 0 as soon as a match is found. However, at that point "git branch -a" may be still writing to the pipe, leading to SIGPIPE. When pipefail is set, PIPESTATUS 141 will be returned. Fix the problem by not using "grep -q". Also fix the branch name in the generated commit subject. Change-Id: Ic07efb5e2a4f3b7bbc6e76da9e026771bc685bdb Signed-off-by: Yu-Ping Wu <yupingso@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/77085 Reviewed-by: Yidi Lin <yidilin@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>