Git and submitting patches to fix bugs

[John Wiegley]

For those who've not yet used this feature of Git, it's fairly easy to submit
patches to fix Emacs bugs. Let's take issue #21895 as an example:

    <In your Git clone of Emacs, hack on the bug until ready>

    git commit -a -m "Your description of the fix"
    git format-patch --to address@hidden HEAD^..
    git send-email --smtp-server=$SMTP *.patch

If you have an SMTP server on localhost, you may not need that argument. If
you have more commits than just one, use HEAD~<n>, where n is the number of
commits you want to submit. Or, if you fixed the bug in a local branch, use
"master..", or whichever branch you branched from.

On the developer side, who approves of and wants to apply the patch, save the
e-mail(s) to a file and use:

    git am <path to mbox file>

To see what bugs are coming up that you might want to look at, you can
subscribe to the bugs mailing list.

John