Bug#844513: Pending fixes for bugs in the prometheus package

[pkg-go-maintainers]

tag 844513 + pending
thanks

Some bugs in the prometheus package are closed in revision
ae1757c32c251ff88d0c590fd04eb279b7ebd0fd in branch 'debian/sid' by
Martín Ferrari

The full diff can be seen at
https://anonscm.debian.org/cgit/pkg-go/packages/prometheus.git/commit/?id=ae1757c

Commit message:

    Add Closes: #844513 to already prepared fix.