patch 8.0.0581: moving folded text is sometimes not correct commit https://github.com/vim/vim/commit/94be619e30e82d28cadeea5e0766c6f5c321ff8b Author: Bram Moolenaar <Bram@vim.org> Date: Sat Apr 22 22:40:11 2017 +0200 patch 8.0.0581: moving folded text is sometimes not correct Problem: Moving folded text is sometimes not correct. Solution: Bail out when "move_end" is zero. (Matthew Malcomson)

$! test77a - help file creating checksum on VMS
$! Created by Zoltan Arpadffy
$
$ IF P1 .NES. ""
$ THEN
$    checksum 'P1'
$    show symb CHECKSUM$CHECKSUM
$ ENDIF