Snippet for Sublime Text 2 with GPL License text from http://www.gnu.org/licenses/gpl-howto.html

gpl.sublime-snippet

<snippet>
    <content><![CDATA[/**
 * ${0:${TM_FILENAME}}
 * This file is part of ${1:<program name>}
 *
 * Copyright (C) ${2:<year>} - ${3:<your name>}
 *
 * ${1:<program name>} is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * ${1:<program name>} is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with ${1:<program name>}. If not, see <http://www.gnu.org/licenses/>.
 */]]></content>
    <tabTrigger>gpl</tabTrigger>
    <description>The Short GNU GPL Licence</description>
</snippet>

Based on https://github.com/xpd259/sublimetext2-licences/blob/master/gpl.sublime-snippet

Much useful, thank you!