patch 8.1.0753: printf format not checked for semsg() commit https://github.com/vim/vim/commit/b5443cc46dd1485d6c785dd8c65a2c07bd5a17f3 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jan 15 20:19:40 2019 +0100 patch 8.1.0753: printf format not checked for semsg() Problem: printf format not checked for semsg(). Solution: Add GNUC attribute and fix reported problems. (Dominique Pelle, closes #3805)