[SDFAB-285] Use stern to save a tail of pod logs

 - Only save logs from the test period
 - Fix some typos
 - Check cli connectivity after saving logs, we sometimes timed out

Change-Id: I3f62950f898bef78b6071d94bcfb17ced1a6ca45
diff --git a/TestON/tests/USECASE/SegmentRouting/SRStaging/SRStaging.py b/TestON/tests/USECASE/SegmentRouting/SRStaging/SRStaging.py
index c593bbb..63a5280 100644
--- a/TestON/tests/USECASE/SegmentRouting/SRStaging/SRStaging.py
+++ b/TestON/tests/USECASE/SegmentRouting/SRStaging/SRStaging.py
@@ -102,11 +102,11 @@
         port4 = main.funcs.linkDown( device, portsList, srcComponentList, dstComponent, shortDesc, longDesc )
         ## Third Link Up
         shortDesc = descPrefix + "-Recovery3"
-        longDesc = "%s Recovery: Bring upn %s/%s" % ( descPrefix, device, port3 )
+        longDesc = "%s Recovery: Bring up %s/%s" % ( descPrefix, device, port3 )
         main.funcs.linkUp( device, port3, srcComponentList, dstComponent, shortDesc, longDesc )
         ## Forth Link Up
         shortDesc = descPrefix + "-Recovery4"
-        longDesc = "%s Recovery: Bring up  %s/%s" % ( descPrefix, device, port4 )
+        longDesc = "%s Recovery: Bring up %s/%s" % ( descPrefix, device, port4 )
         main.funcs.linkUp( device, port4, srcComponentList, dstComponent, shortDesc, longDesc )
 
         main.log.warn( json.dumps( main.downtimeResults, indent=4, sort_keys=True ) )
@@ -176,11 +176,11 @@
         port4 = main.funcs.linkDown( device, portsList, srcComponentList, dstComponent, shortDesc, longDesc )
         ## Third Link Up
         shortDesc = descPrefix + "-Recovery3"
-        longDesc = "%s Recovery: Bring upn %s/%s" % ( descPrefix, device, port3 )
+        longDesc = "%s Recovery: Bring up %s/%s" % ( descPrefix, device, port3 )
         main.funcs.linkUp( device, port3, srcComponentList, dstComponent, shortDesc, longDesc )
         ## Forth Link Up
         shortDesc = descPrefix + "-Recovery4"
-        longDesc = "%s Recovery: Bring up  %s/%s" % ( descPrefix, device, port4 )
+        longDesc = "%s Recovery: Bring up %s/%s" % ( descPrefix, device, port4 )
         main.funcs.linkUp( device, port4, srcComponentList, dstComponent, shortDesc, longDesc )
 
         main.log.warn( json.dumps( main.downtimeResults, indent=4, sort_keys=True ) )