Abort if earlygetopt fails to detect an option.
Otherwise it could happen that a command is used on the wrong repository,
because abbreviations of --cwd or --repository were ignored.
adding dir/bar
adding foo
dir/bar
foo
adding dir/bar_2
adding foo_2
dir/bar_2
foo_2
adding a
adding c
adding b
adding d
removing a
removing c
recording removal of a as rename to b (100% similar)