patch 8.2.1637: Vim9: :put ={expr} does not work inside :def function Commit: https://github.com/vim/vim/commit/c3516f7e4507c77424b94cb89071f6d0841f4e6a Author: Bram Moolenaar <Bram@vim.org> Date: Tue Sep 8 22:45:35 2020 +0200 patch 8.2.1637: Vim9: :put ={expr} does not work inside :def function Problem: Vim9: :put ={expr} does not work inside :def function. Solution: Add ISN_PUT. (closes https://github.com/vim/vim/issues/6397)