commit https://github.com/vim/vim/commit/17fe5e1aecbeff5ca4b2a821ede9badd5dddae59 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Apr 4 22:03:08 2016 +0200 patch 7.4.1710 Problem: Not all output of an external command is read. Solution: Avoid timing out when the process has exited. (closes https://github.com/vim/vim/issues/681)