tree f0e21688b82eb0275d4c35cf443fada78dc54ddb
parent 0f55f5a12b7c906dc9760c84c51a03dfc8d9b113
author Ivan Frade <ifrade@google.com> 1630607343 -0700
committer Ivan Frade <ifrade@google.com> 1630617975 -0700

JiriUpdater: Do not set branch for SHA1

In pinned manifest, the ref is a SHA1. Current code is writing "branch =
<SHA1>" that is not a valid value. Furthermore, tags are not valid
values for the branch field.

Write the branch field only for non-tags. Tags go to the "ref" field
(RepoCommand does this).

Change-Id: Id89d8a4c1dd6d9dc3327fc3f60a6b7c7a324b0a5