Configure automerge PR to close issue (with request)

[jakirkham]

It looks like the bot PR ( conda-forge/pyobjc-core-feedstock#21 ) merely references the issue ( conda-forge/pyobjc-core-feedstock#20 ) where automerging was requested. Would be good if the PR used GitHub's "closes" keyword to trigger closing the linked issue.

[beckermr]

So this already works but only if you put the bot command in the title of the issue: https://github.com/conda-forge/conda-forge-webservices/blob/master/conda_forge_webservices/commands.py#L336

This behavior is consistent with how rerenders work and is intentional IIUIC. We don't want to close issues that might be for some other purpose but happen to have a bot command in them. Thus we use the issue title and whether or not it has the bot command as a hint.