SERVER-6482 loglong.js is unreliable in parallel suite

Author: milkie

src/mongo/shell/utils.js

@@ -828,7 +828,10 @@ if ( typeof _threadInject != "undefined" ){
                                    "jstests/fsync2.js", // May be placed in serialTestsArr once SERVER-4243 is fixed.
                                    "jstests/bench_test1.js",
                                    "jstests/padding.js",
-                                   "jstests/queryoptimizera.js"] );
+                                   "jstests/queryoptimizera.js",
+                                   "jstests/loglong.js" // log might overflow before 
+                                                        // this has a chance to see the message
+                                  ] );
 
         // some tests can't be run in parallel with each other
         var serialTestsArr = [ "jstests/fsync.js"