If a commit message mention another bug, the CI script try to add the patch

to the bug in the commit message, and change the bug to POST.

Mentioning another bug in a commit message is good practice, making it

easier to follow, and avoiding unclear forms like "bug 1000000" or "BZ#1000000",

or even worse shortened urls like https://goo.gl/bPuFGo.

Here is a proof:

    gerrit-hooks
    Patch Set 1:

    Check Bug-Url::10000000::WARN, failed to get bug info (private bug or bug doesn't exist
    Check Product::IGNORE, not relevant for branch: master
    Check TM::IGNORE, not relevant for branch: master
    Check Backport::IGNORE, not relevant for branch: master
    Set POST::#10000000::WARN, failed to get bug info (private bug or bug doesn't exist)
    Update Tracker::#10000000::WARN, failed to get bug info (private bug or bug doesn't exist)