* src/text.c (do_histify): Don't allow sigwinch to be received while justifying
          as that puts us into a wacky state.  Fixess crash on justify by Joshua Rogers.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4565 35c25a1d-7b9e-4130-9fde-d3aeb78583b8