patch 8.0.1293: setting a breakpoint in the terminal debugger sometimes fails commit https://github.com/vim/vim/commit/60e73f2acc890f07056fa1bea8dbe89d26918b3e Author: Bram Moolenaar <Bram@vim.org> Date: Sun Nov 12 18:02:06 2017 +0100 patch 8.0.1293: setting a breakpoint in the terminal debugger sometimes fails Problem: Setting a breakpoint in the terminal debugger sometimes fails. Solution: Interrupt the program if needed. Set the interface to async.

#!/bin/sh
#
# ref - Check spelling of the arguments
#
# Usage: ref word ..
#
# can be used for the K command of Vim
#
spell <<EOF
$*
EOF