Fixs some misspellings

Change-Id: I03d23d8acca8789b430f74fdac80d287f0fa59df
diff --git a/protocols/openflow/ctl/src/test/java/org/onosproject/openflow/controller/impl/ControllerTest.java b/protocols/openflow/ctl/src/test/java/org/onosproject/openflow/controller/impl/ControllerTest.java
index 02f8f29..b3bb8b1 100644
--- a/protocols/openflow/ctl/src/test/java/org/onosproject/openflow/controller/impl/ControllerTest.java
+++ b/protocols/openflow/ctl/src/test/java/org/onosproject/openflow/controller/impl/ControllerTest.java
@@ -216,7 +216,7 @@
     }
 
     /**
-     * Tests controll utility health methods.
+     * Tests control utility health methods.
      */
     @Test
     public void testHealth() {