patch 8.1.0105: all tab stops are the same commit https://github.com/vim/vim/commit/04958cbaf25eea27eceedaa987adfb354ad5f7fd Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jun 23 19:23:02 2018 +0200 patch 8.1.0105: all tab stops are the same Problem: All tab stops are the same. Solution: Add the variable tabstop feature. (Christian Brabandt, closes #2711)

" Vim indent file
" Language:	Mail
" Maintainer:	Bram Moolenaar
" Last Change:	2009 Jun 03

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

" What works best is auto-indenting, disable other indenting.
" For formatting see the ftplugin.
setlocal autoindent nosmartindent nocindent indentexpr=