Nik asked for this after debugging a Cirrus outage. He's like to be warned when a sync-file/sync-dir doesn't update any files. In this particular instance he did a git fetch on tin followed by a git log HEAD..origin/master and then a sync-dir. Oops, forgot git rebase.

Could either log to the operator's console, or maybe even better add "updated N files on M hosts" stanza to the SAL announcement.

Version: wmf-deployment
Severity: normal