Since Python has deprecated the formatter module, switch to the textwrap
module instead for reflowing text. We weren't really using any other
feature anyways.
Verified by diffing the output before & after the change and making sure
it was the same.
Then made a few tweaks to tighten up the output.
Change-Id: I0be1bc2a6661a311b1a4693c80d0f8366320ba55
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/303282
Reviewed-by: Raman Tenneti <rtenneti@google.com>
Tested-by: Mike Frysinger <vapier@google.com>