patch 8.0.0709: libvterm cannot use vsnprintf() commit https://github.com/vim/vim/commit/8327d1df1754b33d8a93b3411f30692f0042f4ce Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jul 11 22:34:51 2017 +0200 patch 8.0.0709: libvterm cannot use vsnprintf() Problem: Libvterm cannot use vsnprintf(), it does not exist in C90. Solution: Use vim_vsnprintf() instead.

" Test for joining lines.

func Test_join_with_count()
  new
  call setline(1, ['one', 'two', 'three', 'four'])
  normal J
  call assert_equal('one two', getline(1))
  %del
  call setline(1, ['one', 'two', 'three', 'four'])
  normal 10J
  call assert_equal('one two three four', getline(1))
  quit!
endfunc