Bug#824842: Pending fixes for bugs in the prometheus package

[pkg-go-maintainers]

tag 824842 + pending
thanks

Some bugs in the prometheus package are closed in revision
603ee0bbd4a667c7977b610849c48284ed668a20 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=603ee0b

Commit message:

    debian/service: match sysvinit behaviour (send SIGTERM with 20s timeout, 
never send SIGKILL) Closes: #824842