Added check for trailing whitespaces and corrected existing violations.

test/mjsunit/regress/regress-925537.js

 // Copyright 2008 the V8 project authors. 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
@@ skipping 10 matching lines @@
 // 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.
 
 function assertClose(expected, actual) {
   var delta = 0.00001;
   if (Math.abs(expected - actual) > delta) {
-    print('Failure: Expected <' + actual + '> to be close to <' + 
-          expected + '>');    
+    print('Failure: Expected <' + actual + '> to be close to <' +
+          expected + '>');
   }
 }
 
 assertEquals(1, Math.pow(NaN, 0));
 var pinf = Number.POSITIVE_INFINITY, ninf = Number.NEGATIVE_INFINITY;
 assertClose( Math.PI / 4, Math.atan2(pinf, pinf));
 assertClose(-Math.PI / 4, Math.atan2(ninf, pinf));
 assertClose( 3 * Math.PI / 4, Math.atan2(pinf, ninf));
 assertClose(-3 * Math.PI / 4, Math.atan2(ninf, ninf));