bug#68691: 30.0.50; [WISHLIST] Make it easier to conform to desired commit message format

[Stefan Kangas <stefankangas@gmail.com>]

No Wayman <iarchivedmywholelife@gmail.com> writes:

> Idea: Extend checkdoc or write a new minor mode that runs
> stylistic checks on commit messages.

Since we try to adhere to the GNU ChangeLog format, I think such a
linting mode would help contributors.

Copying in Po Lu, who might be interested in working on it.

FWIW, I'll not be working on such a mode myself, as I'd rather see that
we promoted useful commit messages in the style of, say, the Linux
kernel instead of the GNU ChangeLog format.  It is simply redundant to
enumerate changed files when using a modern distributed VCS like Git.
But that's my personal opinion, and not currently that of the project.