Local backups are generally not needed since you can just git checkout
old versions anyway before committing. It was nice to have during dev
but generally shouldn't be done now.
Usage: tools/dev/retab.rb directory
will retab with 2-width spaces rather than tabs for indentation.
This utility should be used by the @tabassassin account when it's
unleashed on the Metasploit code base in order to make git blame a
little easier to spot. (diffs should use -b or -w to avoid seeing
@tabassassin's changes)