patch 8.2.1087: possible memory leak when file expansion fails Commit: https://github.com/vim/vim/commit/566cc8c72bb8036f015a435800f28ef9f6a9a3b6 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jun 29 21:14:51 2020 +0200 patch 8.2.1087: possible memory leak when file expansion fails Problem: Possible memory leak when file expansion fails. Solution: Clear the grow array when returning FAIL. Use an error message instead of an empty string.