list is apparently to only allow meta shortcuts as toggles, so only
allow the meta shortcuts for searching for the beginning and end of the
paragraph and justifying the entire file to go in the main list


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@1949 35c25a1d-7b9e-4130-9fde-d3aeb78583b8