patch 8.0.1455: if $SHELL contains a space then 'shell' is incorrect commit https://github.com/vim/vim/commit/4bfa8af14142e54f509048239f4e8596911f56aa Author: Bram Moolenaar <Bram@vim.org> Date: Sat Feb 3 15:14:46 2018 +0100 patch 8.0.1455: if $SHELL contains a space then 'shell' is incorrect Problem: If $SHELL contains a space then the default value of 'shell' is incorrect. (Matthew Horan) Solution: Escape spaces in $SHELL. (Christian Brabandt, closes #459)

function Test_Comparators()
  try
    let oldisident=&isident
    set isident+=#
    call assert_equal(1, 1 is#1)
  finally
    let &isident=oldisident
  endtry
endfunction