patch 8.1.0697: ":sign place" requires the buffer argument commit https://github.com/vim/vim/commit/b328cca2548936c5f68fff683049a929882f5011 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jan 6 16:24:01 2019 +0100 patch 8.1.0697: ":sign place" requires the buffer argument Problem: ":sign place" requires the buffer argument. Solution: Make the argument optional. Also update the help and clean up the sign test. (Yegappan Lakshmanan, closes #3767)