patch 8.2.0278: channel test is flaky on Mac Commit: https://github.com/vim/vim/commit/9ae3bbdb960c3bed20a6db75a75a0a567d570bea Author: Bram Moolenaar <Bram@vim.org> Date: Wed Feb 19 14:31:33 2020 +0100 patch 8.2.0278: channel test is flaky on Mac Problem: Channel test is flaky on Mac. Solution: Reset variable before sending message.

#! /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