patch 8.1.2178: accessing uninitialized memory in test Commit: https://github.com/vim/vim/commit/15ee567809a9808693163dd7c357ef0c172ecc9e Author: Bram Moolenaar <Bram@vim.org> Date: Sat Oct 19 14:35:02 2019 +0200 patch 8.1.2178: accessing uninitialized memory in test Problem: Accessing uninitialized memory in test. Solution: Check if there was a match before using the match position. (Dominique Pelle, closes #5088)

#! /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