Amended:
* Import upstream fix for termui [1] as mentioned here [2].
We can now _actually_ use 'git bug termui' without it
indefinitely hanging.
[1]: 58d4fcbce2
[2]: https://github.com/MichaelMure/git-bug/issues/387
PR: 246486
Submitted by: Lewis Cook <vulcan@wired.sh> (maintainer)