patch 8.2.2143: Vim9: dead code in compiling :unlet Commit: https://github.com/vim/vim/commit/ec792290eb902e01c9edfc0cb71e5235833df56a Author: Bram Moolenaar <Bram@vim.org> Date: Sun Dec 13 21:26:56 2020 +0100 patch 8.2.2143: Vim9: dead code in compiling :unlet Problem: Vim9: dead code in compiling :unlet. Solution: Don't check for "!" a second time.

#! /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