commit https://github.com/vim/vim/commit/015102e91e978a0bb42a14461c132a85e8f7e1ea Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jul 16 18:24:56 2016 +0200 patch 7.4.2050 Problem: When using ":vimgrep" may end up with duplicate buffers. Solution: When adding an error list entry pass the buffer number if possible.

" A series of tests that can run in one Vim invocation.
" This makes testing go faster, since Vim doesn't need to restart.

" These tests use latin1 'encoding'.  Setting 'encoding' is in the individual
" files, so that they can be run by themselves.

source test_regexp_latin.vim