[toolchain-utils] Fix rotating builders to work with no patches.
Currently if no patch is passed to cbuildbot, it hangs; similarly if
no patch is given to the rotating builder script, it dies. This CL
fixes both of those. It also temporarily stops the rotating builders
from sending emails until we can figure out how to fix their reports.
BUG=chromium:657060
TEST=Tested changes in role account;seemed to work.
Change-Id: I4ba70b562f9cb44d396361cd6461230d7080c6e9
Reviewed-on: https://chrome-internal-review.googlesource.com/297584
Commit-Ready: Caroline Tice <cmtice@google.com>
Tested-by: Caroline Tice <cmtice@google.com>
Reviewed-by: Caroline Tice <cmtice@google.com>
Reviewed-by: Ting-Yuan Huang <laszio@google.com>
2 files changed