Fix comments and sheband in setup.py.

setup.py

@@ -1,34 +1,4 @@
-#!/usr/bin/env python
-
-###
-# Copyright (c) 2002-2005, Jeremiah Fincher
-# Copyright (c) 2009, James McCoy
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are met:
-#
-#   * 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 the author of this software nor the name of
-#     contributors to this software may be used to endorse or promote products
-#     derived from this software without specific prior written consent.
-#
-# 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.
-###
+#!/usr/bin/env python3
 
 import os
 import sys