commit https://github.com/vim/vim/commit/8f79acdf7ede2693fbda53c3c9693f16db4f193b Author: Bram Moolenaar <Bram@vim.org> Date: Fri Jan 1 14:48:20 2016 +0100 patch 7.4.1017 Problem: When there is a backslash in an option ":set -=" doesn't work. Solution: Handle a backslash better. (Jacob Niehus) Add a new test, merge in old test.

" Vim indent file
" Language:    XSLT .xslt files
" Maintainer:  David Fishburn <fishburn@ianywhere.com>
" Last Change: Wed May 14 2003 8:48:41 PM

" Only load this indent file when no other was loaded.
if exists("b:did_indent")
  finish
endif

" Use XML formatting rules
runtime! indent/xml.vim