Useful for prepraring to 'git filter-branch' eg. for repo splicing
Must be run from within a git repository, assumes the 'git'command is installed and in the \$PATH
If you only want current files, use instead 'git ls-files'
"
# used by usage() in lib/utils.sh
# shellcheck disable=SC2034
usage_args=""
help_usage "$@"
# technically --all isn't that relevant to git filter-branch as it'll list things on other branches, but in terms of listing all files in history, it's more correct to include it as it won't break filter-branch derived usage
# -e '^[[:alpha:]]+:' filters out Author: , Date: , Merge: etc.