patch 8.2.0619: null dict is not handled like an empty dict Commit: https://github.com/vim/vim/commit/ea04a6e8baff2f27da7cdd54bf70a5525994f76d Author: Bram Moolenaar <Bram@vim.org> Date: Thu Apr 23 13:38:02 2020 +0200 patch 8.2.0619: null dict is not handled like an empty dict Problem: Null dict is not handled like an empty dict. Solution: Fix the code and add tests. (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/5968)

#! /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