If there is an unclassified failure in the check queue, we want to make
it clear to the user so they will investigate the error as its most
likely a valid failure. Also don't include recheck instructions when
unclassified failure as they shouldn't be running a recheck if there is
an unclassified failure.
With us now classifying many failures from non-voting jobs, it is common
to see classified failures and no mention of the job that legitimately
failed.
Partial revert of I52044afb4f3a1bf3f22ba4c0e8d38d76271ffc00
Change-Id: I6b471b9ab9c7f36eeed93993ea086bbc9daa56b0
14bfee5646