patch 8.0.1467: libvterm doesn't handle illegal byte sequence correctly commit https://github.com/vim/vim/commit/fef4ddd5eb8816a6607a624aa401bcfa71a63def Author: Bram Moolenaar <Bram@vim.org> Date: Sun Feb 4 14:49:57 2018 +0100 patch 8.0.1467: libvterm doesn't handle illegal byte sequence correctly Problem: Libvterm doesn't handle illegal byte sequence correctly. Solution: After the invalid code check if there is space to store another character. Allocate one more character. (zhykzhykzhyk, closes #2614, closes #2613)