Remove unnecessary white space from Javadoc

Change-Id: I99b1b85ea704296cb4ec2ce1c84d65b26d0606ad
diff --git a/core/api/src/main/java/org/onosproject/net/flow/FlowEntry.java b/core/api/src/main/java/org/onosproject/net/flow/FlowEntry.java
index 32da179..389b214 100644
--- a/core/api/src/main/java/org/onosproject/net/flow/FlowEntry.java
+++ b/core/api/src/main/java/org/onosproject/net/flow/FlowEntry.java
@@ -27,7 +27,7 @@
 
         /**
          * Indicates that this rule has been submitted for addition.
-         * Not necessarily in  the flow table.
+         * Not necessarily in the flow table.
          */
         PENDING_ADD,