Owee, I'm MrMeeseeks, Look at me.

There seem to be a conflict, please backport manually. Here are approximate instructions:

1. Checkout backport branch and update it.

$ git checkout v3.1.x
$ git pull

1. Cherry pick the first parent branch of the this PR on top of the older branch:

$ git cherry-pick -m1 ab932d1d5d9871b3c37c8f7d977fdf523db0d963

1. You will likely have some merge/cherry-pick conflict here, fix them and commit:

$ git commit -am "Backport PR #15671: Don't mention tcl in tkagg commments anymore."

1. Push to a named branch :

git push YOURFORK v3.1.x:auto-backport-of-pr-15671-on-v3.1.x

1. Create a PR against branch v3.1.x, I would have named this PR:

"Backport PR #15671 on branch v3.1.x"

And apply the correct labels and milestones.

Congratulation you did some good work ! Hopefully your backport PR will be tested by the continuous integration and merged soon!

If these instruction are inaccurate, feel free to suggest an improvement.

Owee, I'm MrMeeseeks, Look at me.

There seem to be a conflict, please backport manually. Here are approximate instructions:

1. Checkout backport branch and update it.

$ git checkout v3.2.x
$ git pull

1. Cherry pick the first parent branch of the this PR on top of the older branch:

$ git cherry-pick -m1 ab932d1d5d9871b3c37c8f7d977fdf523db0d963

1. You will likely have some merge/cherry-pick conflict here, fix them and commit:

$ git commit -am "Backport PR #15671: Don't mention tcl in tkagg commments anymore."

1. Push to a named branch :

git push YOURFORK v3.2.x:auto-backport-of-pr-15671-on-v3.2.x

1. Create a PR against branch v3.2.x, I would have named this PR:

"Backport PR #15671 on branch v3.2.x"

And apply the correct labels and milestones.

Congratulation you did some good work ! Hopefully your backport PR will be tested by the continuous integration and merged soon!

If these instruction are inaccurate, feel free to suggest an improvement.

I'm not super worried about back porting comments is c code to older branches. They are not user-facing and have been out-dated for a while.