Fix Javadoc warnings

Change-Id: Ia5fe7785f76da92abbf940599cbd3d7dc6ac2cc5
diff --git a/protocols/pcep/api/src/main/java/org/onosproject/pcep/controller/PcepClientController.java b/protocols/pcep/api/src/main/java/org/onosproject/pcep/controller/PcepClientController.java
index 7b29a72..9f02b8b 100644
--- a/protocols/pcep/api/src/main/java/org/onosproject/pcep/controller/PcepClientController.java
+++ b/protocols/pcep/api/src/main/java/org/onosproject/pcep/controller/PcepClientController.java
@@ -130,7 +130,7 @@
     /**
      * Creates label stack for ERO object from network resource.
      *
-     * @param labelStack
+     * @param labelStack label stack
      * @param path (hop list)
      * @return list of ERO sub-objects
      */