Relicense cpplint under 3 clause BSD for webkit folks.

cpplint/README

 This is automated checker to make sure a C++ file follows Google's C++ style
 guide (http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml). As it
 heavily relies on regular expressions, cpplint.py won't catch all violations of
 the style guide and will very occasionally report a false positive. There is a
 list of things we currently don't handle very well at the top of cpplint.py,
 and we welcome patches to improve it.
 
 The linting tool takes a list of files as input. For full usage instructions,
 please see the output of:
 
   ./cpplint.py --help
 
 Unit tests are provided in cpplint_unittest.py. This file can safely be ignored
 by end users who have downloaded this package and only want to run the lint
 tool.
 
+---
+
 cpplint.py and its corresponding unit tests are Copyright (C) 2009 Google Inc.
-It is free software; you can redistribute it and/or modify it under the terms
-of either:
 
-  a) the GNU General Public License as published by the Free Software
-  Foundation; either version 1, or (at your option) any later version, or
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
 
-  b) the "Artistic License".
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.