improve grammar in comment

test/mjsunit/unicode-test.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 5708 matching lines @@
 "   malloc relies on the property that malloc_state is initialized to\n" +
 "   all zeroes (as is true of C statics).\n" +
 "*/\n" +
 "\n" +
 "static struct malloc_state av_;  /* never directly referenced */\n" +
 "\n" +
 "/*\n" +
 "   All uses of av_ are via get_malloc_state().\n" +
 "   At most one \"call\" to get_malloc_state is made per invocation of\n" +
 "   the public versions of malloc and free, but other routines\n" +
-"   that in turn invoke malloc and/or free may call more then once.\n" +
+"   that in turn invoke malloc and/or free may call more than once.\n" +
 "   Also, it is called in check* routines if DEBUG is set.\n" +
 "*/\n" +
 "\n" +
 "#define get_malloc_state() (&(av_))\n" +
 "\n" +
 "/*\n" +
 "  Initialize a malloc_state struct.\n" +
 "\n" +
 "  This is called only from within malloc_consolidate, which needs\n" +
 "  be called in the same contexts anyway.  It is never called directly\n" +
@@ skipping 3418 matching lines @@
     }
   }
   print ("re = " + out);
 }
 
 var thai_l_thingy = "\u0e44";
 var thai_l_regexp = new RegExp(thai_l_thingy);
 var thai_l_regexp2 = new RegExp("[" + thai_l_thingy + "]");
 assertTrue(thai_l_regexp.test(thai_l_thingy));
 assertTrue(thai_l_regexp2.test(thai_l_thingy));