Represent github change ID in status page by PR number

The change.id given to the status.json output for github PRs is a full
"PR#,SHA" combo. This gives it uniqueness when we can have multiple
commits and versions of commits per PR.

When we display this in the status page though i think all we care about
is the PR number, so trim it out and just display that.

Change-Id: I73385a6b0743a6764fdfdd51cd1d8ee02b71c53c
Signed-off-by: Jamie Lennox <jamielennox@gmail.com>
1 file changed