* Remove CUTTOEND as an undo type as it's unneeded, fix u->to_end logic in undo struct.
        * undo.c (update_undo): Don't free cutbuffer if NULL, fix for Savannah bug #24499



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4339 35c25a1d-7b9e-4130-9fde-d3aeb78583b8