Usage: git checkout master && ./cleanrebase [--help] <branch>

Specify the <branch> you want to rebase onto master. Run the 'git rebase'
command that this tools suggests, and follow the instructions given by git.
Then run 'git checkout master && ./cleanrebase <branch>' again, until you
see the message 'cleanrebase is DONE'.

This tool suggests which rebase command to run next, for a rebase of <branch>
onto master. It finds new commits on master that contain changes created by
the 'cleanup' script, and makes sure the <branch> gets rebased on top of them
with as little merge difficulties as possible.

This is how the suggestions are made:
  * if the first new commit on master /does not/ contain changes created by
    the 'cleanup' script, then the suggested command will be to rebase onto
    the /parent/ of the first new commit on master that /is/ created by the
    'cleanup' script, or onto the tip of master, if such commit does not
    exist. Since these are normal rebase commands, you may have to solve merge
    conflicts as usual.
  * if the first new commit on master /does/ contain changes created by the
    'cleanup' script, then the suggested rebase command will move <branch> one
    commit closer to the tip of master. This is a special rebase command,
    which never results in a merge conflicts for you to solve (it favors the
    commits from <branch> in case of a merge conflict, runs the 'cleanup'
    script on all changed files (via an intermediate script called
    'cleanupcommit'), and then amends the changes to the commit).