patch 8.1.0011: maparg() and mapcheck() confuse empty and non-existing commit https://github.com/vim/vim/commit/f88a5bc10232cc3fac92dba4e8455f4c14311f8e Author: Bram Moolenaar <Bram@vim.org> Date: Mon May 21 13:28:44 2018 +0200 patch 8.1.0011: maparg() and mapcheck() confuse empty and non-existing Problem: maparg() and mapcheck() confuse empty and non-existing. Solution: Return <Nop> for an existing non-empty mapping. (closes https://github.com/vim/vim/issues/2940)

#! /bin/sh
#
# which.sh -- find where an executable is located.  It's here because the
# "which" command is not supported everywhere.  Used by Makefile.

IFS=":"
for ac_dir in $PATH; do
	if test -f "$ac_dir/$1"; then
		echo "$ac_dir/$1"
		break
	fi
done