Do not list HA workers without VMname

This fixes #22

Author: remibergsma

listHAWorkers.py

@@ -153,8 +153,11 @@ def handleArguments(argv):
         continue
     if len(vmnameFilter) > 0 and vmname.find(vmnameFilter) < 0:
         continue
+    if vmname == None:
+       continue
     counter = counter + 1
     displayname = (vmname[:28] + '..') if len(vmname) >= 31 else vmname
+    mgtname = mgtname.split(".")[0]
     t.add_row([
         displayname,
         vm_type,