Bug fix for test-remote-module-loading.js

Fix bug that caused test-remote-module-loading.js
to use the installed version of the http library
rather than the build one.

Author: felixge

test/mjsunit/test-remote-module-loading.js

@@ -21,7 +21,7 @@ assertEquals('/moduleA.js', httpModule.httpPath());
 modulesLoaded++;
 
 var nodeBinary = process.ARGV[0];
-var cmd = nodeBinary+' http://localhost:'+PORT+'/moduleB.js';
+var cmd = 'NODE_PATH='+libDir+' '+nodeBinary+' http://localhost:'+PORT+'/moduleB.js';
 
 sys
   .exec(cmd)