patch 8.0.0351: no test for concatenating an empty string commit https://github.com/vim/vim/commit/218426896cbb2129aa4e85803ea97c5b57df1eaa Author: Bram Moolenaar <Bram@vim.org> Date: Thu Feb 23 13:50:38 2017 +0100 patch 8.0.0351: no test for concatenating an empty string Problem: No test for concatenating an empty string that results from out of bounds indexing. Solution: Add a simple test.

" Vim indent file
" Language:         dict(1) configuration file
" Maintainer:       Nikolai Weibull <now@bitwi.se>
" Latest Revision:  2006-12-20

if exists("b:did_indent")
  finish
endif
let b:did_indent = 1

setlocal indentkeys=0{,0},!^F,o,O cinwords= autoindent smartindent
setlocal nosmartindent
inoremap <buffer> # X#