Apply changes according to the review

network/f5/bigip_virtual_server.py

@@ -237,10 +237,10 @@ def set_snat(api,name,snat):
         current_state=get_snat_type(api,name)
         if snat is None:
             return updated
-        if snat == 'None' and current_state != 'SRC_TRANS_NONE':
+        elif snat == 'None' and current_state != 'SRC_TRANS_NONE':
             api.LocalLB.VirtualServer.set_source_address_translation_none(virtual_servers = [name])
             updated = True
-        if snat == 'Automap' and current_state != 'SRC_TRANS_AUTOMAP':
+        elif snat == 'Automap' and current_state != 'SRC_TRANS_AUTOMAP':
             api.LocalLB.VirtualServer.set_source_address_translation_automap(virtual_servers = [name])
             updated = True
         return updated
@@ -393,8 +393,8 @@ def main():
                     module.fail_json(msg="both destination and port must be supplied to create a VS")
                 if not module.check_mode:
                     # a bit of a hack to handle concurrent runs of this module.
-                    # even though we've checked the pool doesn't exist,
-                    # it may exist by the time we run create_pool().
+                    # even though we've checked the virtual_server doesn't exist,
+                    # it may exist by the time we run virtual_server().
                     # this catches the exception and does something smart
                     # about it!
                     try: