in display_string(), fix memory corruption problems caused by not
allocating enough space for converted when a line ends in a tab(s) and
we're not in UTF-8 mode


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@3272 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
2 files changed