Fix typos detected by Frank Wang

Change-Id: I86b2e302569eff89d7051321a4531c7e0dc242f9
diff --git a/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/BgpKeepAliveTimer.java b/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/BgpKeepAliveTimer.java
index 23c8f35..919e9af 100644
--- a/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/BgpKeepAliveTimer.java
+++ b/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/BgpKeepAliveTimer.java
@@ -65,7 +65,7 @@
                 handler.sendKeepAliveMessage();
                 handler.getBgpPacketStats().addOutPacket();
             } catch (Exception e) {
-                log.info("Exception occured while sending keepAlive message" + e.toString());
+                log.info("Exception occurred while sending keepAlive message" + e.toString());
             }
         }
     }
diff --git a/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/BgpLocalRibImpl.java b/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/BgpLocalRibImpl.java
index 8e8ee43..ece0933 100644
--- a/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/BgpLocalRibImpl.java
+++ b/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/BgpLocalRibImpl.java
@@ -469,7 +469,7 @@
     }
 
     /**
-     * Update local RIB node based on avaliable peer adjacency RIB.
+     * Update local RIB node based on available peer adjacency RIB.
      *
      * @param o adjacency-in/VPN adjacency-in
      * @throws BgpParseException BGP parse exception
@@ -511,7 +511,7 @@
     }
 
     /**
-     * Update localRIB link based on avaliable peer adjacency RIB.
+     * Update localRIB link based on available peer adjacency RIB.
      *
      * @param o adjacency-in/VPN adjacency-in
      * @throws BgpParseException BGP parse exceptions
@@ -553,7 +553,7 @@
     }
 
     /**
-     * Update localRIB prefix based on avaliable peer adjacency RIB.
+     * Update localRIB prefix based on available peer adjacency RIB.
      *
      * @param o instance of adjacency-in/VPN adjacency-in
      * @throws BgpParseException BGP parse exception
diff --git a/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/VpnAdjRibIn.java b/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/VpnAdjRibIn.java
index dad262c..31ced74 100644
--- a/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/VpnAdjRibIn.java
+++ b/protocols/bgp/ctl/src/main/java/org/onosproject/bgp/controller/impl/VpnAdjRibIn.java
@@ -131,7 +131,7 @@
     }
 
     /**
-     * Update nlri identifier mapped with route distinguisher if it exists in tree otherwise add nlri infomation mapped
+     * Update nlri identifier mapped with route distinguisher if it exists in tree otherwise add nlri information mapped
      * to respective route distinguisher in tree.
      *
      * @param nlri NLRI info
@@ -206,4 +206,4 @@
                 .add("vpnPrefixTree", vpnPrefixTree)
                 .toString();
     }
-}
\ No newline at end of file
+}