Add '-tryjob' suffix to build name.

We got some errors like
These configs are not tryjob safe:
  lumpy-release
Consider these configs instead:
  lumpy-release-tryjob
when lauching tryjobs to get the image.

This CL fixes that.

BUG=none
TEST=the build name is set to lumpy-release-tryjob.

Change-Id: I30086001e3937c956983f7c31b038b4a09b3ecec
Reviewed-on: https://chromium-review.googlesource.com/781441
Commit-Ready: Yunlian Jiang <yunlian@chromium.org>
Tested-by: Yunlian Jiang <yunlian@chromium.org>
Reviewed-by: Caroline Tice <cmtice@chromium.org>
2 files changed