patch 8.2.2887: crash when passing null string to fullcommand() Commit: https://github.com/vim/vim/commit/4c8e8c6e19b75d632b042aa0ba0a2ab769b2162e Author: Bram Moolenaar <Bram@vim.org> Date: Wed May 26 19:49:09 2021 +0200 patch 8.2.2887: crash when passing null string to fullcommand() Problem: Crash when passing null string to fullcommand(). Solution: Check for NULL pointer. (closes https://github.com/vim/vim/issues/8256)

" Vim indent file
" Language:    	    DocBook Documentation Format
" Previous Maintainer:  Nikolai Weibull <now@bitwi.se>
" Latest Revision:      2006-04-19

if exists("b:did_indent")
  finish
endif

" Same as XML indenting for now.
runtime! indent/xml.vim

if exists('*XmlIndentGet')
  setlocal indentexpr=XmlIndentGet(v:lnum,0)
endif