From: Ralph Seichter <github@seichter.de>

Introduce the ability to append comments to modifications
made using git-config. Example usage:

  git config --comment "I changed this. --A. Script" \
    --add safe.directory /home/alice/somerepo.git

The implementation ensures that a # character is always
prepended to the provided comment string.

Signed-off-by: Ralph Seichter <github@seichter.de>

Submitted-As: https://lore.kernel.org/git/pull.1681.git.1709532018372.gitgitgadget@gmail.com