Handle x- form of locale better (spec compliance)

git-svn-id: http://v8-i18n.googlecode.com/svn/trunk@191 24c52dca-d3ef-abce-e343-6dbe4d066545

src/locale.js

diff --git a/src/locale.js b/src/locale.js
index 951f497..ed61d0b 100644
--- a/src/locale.js
+++ b/src/locale.js
@@ -99,6 +99,11 @@
     return false;
   }
 
+  // Just return if it's a x- form. It's all private.
+  if (locale.indexOf('x-') === 0) {
+    return true;
+  }
+    
   // Check if there are any duplicate variants or singletons (extensions).
  
   // Remove private use section.