Cleanup Kernel#singleton_class

meh · meh · commit 5fdd6f7afb6a · 2015-02-24T19:22:23.000+01:00
diff --git a/opal/corelib/kernel.rb b/opal/corelib/kernel.rb
@@ -569,7 +569,7 @@ def require_tree(path)
   alias public_send __send__
 
   def singleton_class
-    %x{Opal.get_singleton_class(self)}
+    `Opal.get_singleton_class(self)`
   end
 
   alias sprintf format
