Encourage people to use full URLs when referencing problem reports in commit messages. The URL doesn't add much overhead and allows people to click on it when viewing the messages.
I have no problem with the suggestion for the body, but please leave the
PR# bit in the subject. The PR is the least useful part of any subject
to me and I don't want to devote more space to it.
I fully agree here and the parts I changed talk about the commit message and not the commit title. I'd also say that should be no reason to even mention the PR# in the title. I changed the revert point to explicitly mention that it is about the commit message.
Although I like the change, I proposed something similar in http://lists.llvm.org/pipermail/llvm-dev/2016-May/099752.html and it was rejected.
+Renato, who was opposed the previous patch.