Added check for trailing whitespaces and corrected existing violations.

test/mjsunit/try.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 232 matching lines @@
       try {
         x++;
         if (false) return -1;
         break L;
       } catch (o) {
         x--;
       }
     } catch (o) {
       x--;
     }
-  } 
+  }
   return x;
 }
 
 assertEquals(0, break_from_nested_catch(0));
 assertEquals(1, break_from_nested_catch(1));
 
 
 function break_from_nested_finally(x) {
  L:
   {
     try {
       x++;
       try {
         x++;
         if (false) return -1;
         break L;
       } finally {
         x--;
       }
     } finally {
       x--;
     }
     x--; // should not happen
-  } 
+  }
   return x;
 }
 
 assertEquals(0, break_from_nested_finally(0));
 assertEquals(1, break_from_nested_finally(1));
 
 
 function continue_from_nested_catch(x) {
   x -= 2;
   var cont = true;
@@ skipping 97 matching lines @@
         return 2;
       } finally {
         continue;
       }
     }
   } while (false);
   return 42;
 }
 
 assertEquals(42, continue_from_nested_finally_in_finally());