Typo and clean up.

Change-Id: I1b9dceb935c93f0fcf8256f01c09948a460ceaf9
diff --git a/lib/ExecutionEngine/Script.h b/lib/ExecutionEngine/Script.h
index fbe4956..5a42db6 100644
--- a/lib/ExecutionEngine/Script.h
+++ b/lib/ExecutionEngine/Script.h
@@ -89,7 +89,7 @@
           break;
         }
         default: {
-          assert(false && "Unknown onject type!");
+          assert(false && "Unknown object type!");
         }
       }
       return objPath;