The Git change's commit message should have a line that starts with Bug:
or Issue:, followed by a bug ID. This is important for tracking purposes,
association with follow-up changes, and having a centralized place to
discuss issues.

Note that this change doesn't actuall check that the bug ID is valid.
Also, at this point Kokoro doesn't block submits.

Bug: b/141892461
Change-Id: Idf57534d24842e18dca90ec01e5bb134db612286
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/36868
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>