commit https://github.com/vim/vim/commit/e292d80bede5cb0b9b1ca95176ad6c3fbaae2e0a Author: Bram Moolenaar <Bram@vim.org> Date: Tue Dec 29 19:03:21 2015 +0100 patch 7.4.996 Problem: New GDK files and testdir/Make_all.mak missing from distribution. PC build instructions are outdated. Solution: Add the file to the list. Update PC build instructions.

" Vim syntax file
" Language:  systemd.unit(5)

if !exists('b:current_syntax')
  " Looks a lot like dosini files.
  runtime! syntax/dosini.vim
  let b:current_syntax = 'systemd'
endif