Fix typo

Change-Id: I3ef787b4bdfa139bf7d1df37bb3778ada462380d
diff --git a/TestON/tests/HAclusterRestart/HAclusterRestart.py b/TestON/tests/HAclusterRestart/HAclusterRestart.py
index 755a89c..ce2f27e 100644
--- a/TestON/tests/HAclusterRestart/HAclusterRestart.py
+++ b/TestON/tests/HAclusterRestart/HAclusterRestart.py
@@ -50,7 +50,7 @@
         main.log.info( "ONOS HA test: Restart all ONOS nodes - " +
                          "initialization" )
         main.case( "Setting up test environment" )
-        main.caseExplaination = "Setup the test environment including " +\
+        main.caseExplanation = "Setup the test environment including " +\
                                 "installing ONOS, starting Mininet and ONOS" +\
                                 "cli sessions."
         # TODO: save all the timers and output them for plotting
@@ -282,7 +282,7 @@
         assert ONOS7Port, "ONOS7Port not defined"
 
         main.case( "Assigning devices to controllers" )
-        main.caseExplaination = "Assign switches to ONOS using 'ovs-vsctl' " +\
+        main.caseExplanation = "Assign switches to ONOS using 'ovs-vsctl' " +\
                                 "and check that an ONOS node becomes the " +\
                                 "master of the device."
         main.step( "Assign switches to controllers" )
@@ -336,7 +336,7 @@
         assert ONOS7Port, "ONOS7Port not defined"
 
         main.case( "Assigning Controller roles for switches" )
-        main.caseExplaination = "Check that ONOS is connected to each " +\
+        main.caseExplanation = "Check that ONOS is connected to each " +\
                                 "device. Then manually assign" +\
                                 " mastership to specific ONOS nodes using" +\
                                 " 'device-role'"
@@ -463,7 +463,7 @@
         # NOTE: we must reinstall intents until we have a persistant intent
         #        datastore!
         main.case( "Adding host Intents" )
-        main.caseExplaination = "Discover hosts by using pingall then " +\
+        main.caseExplanation = "Discover hosts by using pingall then " +\
                                 "assign predetermined host-to-host intents." +\
                                 " After installation, check that the intent" +\
                                 " is distributed to all nodes and the state" +\
@@ -859,7 +859,7 @@
         assert CLIs, "CLIs not defined"
         assert nodes, "nodes not defined"
         main.case( "Verify connectivity by sendind traffic across Intents" )
-        main.caseExplaination = "Ping across added host intents to check " +\
+        main.caseExplanation = "Ping across added host intents to check " +\
                                 "functionality and check the state of " +\
                                 "the intent"
         main.step( "Ping across added host intents" )
@@ -2132,7 +2132,7 @@
         assert nodes, "nodes not defined"
 
         main.case( "Compare ONOS Topology view to Mininet topology" )
-        main.caseExplaination = "Compare topology objects between Mininet" +\
+        main.caseExplanation = "Compare topology objects between Mininet" +\
                                 " and ONOS"
 
         main.step( "Comparing ONOS topology to MN" )
@@ -3012,7 +3012,7 @@
         description = "Check for basic functionality with distributed " +\
                       "primitives"
         main.case( description )
-        main.caseExplaination = "Test the methods of the distributed primitives (counters and sets) throught the cli"
+        main.caseExplanation = "Test the methods of the distributed primitives (counters and sets) throught the cli"
         # DISTRIBUTED ATOMIC COUNTERS
         main.step( "Increment and get a default counter on each node" )
         pCounters = []