src/utils_tail{,_match}.[ch]: Relicense to MIT license.

Date: Sun, 10 Aug 2014 07:11:04 -0700
From: "waynec@c-ware.com" <waynec@c-ware.com>
To: Luke Heberling <luke@ivylink.net>
Subject: Re: [octo@collectd.org: Relicensing collectd]

No objection. MIT licence is good with me.

- Wayne