Update to NSPR 4.9.5, part 1: MPL 2 upgrade only.

mozilla/nsprpub/pr/src/misc/prlog2.c

 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is the Netscape Portable Runtime (NSPR).
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998-2000
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
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- *
- * ***** END LICENSE BLOCK ***** */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "prbit.h"
 
 /*
 ** Compute the log of the least power of 2 greater than or equal to n
 */
 PR_IMPLEMENT(PRIntn) PR_CeilingLog2(PRUint32 n)
 {
     PRIntn log2;
     PR_CEILING_LOG2(log2, n);
     return log2;
 }
 
 /*
 ** Compute the log of the greatest power of 2 less than or equal to n.
 ** This really just finds the highest set bit in the word.
 */
 PR_IMPLEMENT(PRIntn) PR_FloorLog2(PRUint32 n)
 {
     PRIntn log2;
     PR_FLOOR_LOG2(log2, n);
     return log2;
 }