fix status failure on new config12 param

Author: yungwine

mytonctrl/mytonctrl.py

@@ -589,7 +589,7 @@ def PrintStatus(local, ton, args):
 
 	if all_status:
 		network_name = ton.GetNetworkName()
-		rootWorkchainEnabledTime_int = ton.GetRootWorkchainEnabledTime()
+		rootWorkchainEnabledTime_int = local.try_function(ton.GetRootWorkchainEnabledTime)
 		config34 = ton.GetConfig34()
 		config36 = ton.GetConfig36()
 		totalValidators = config34["totalValidators"]

mytonctrl/utils.py

@@ -5,6 +5,8 @@
 
 
 def timestamp2utcdatetime(timestamp, format="%d.%m.%Y %H:%M:%S"):
+    if timestamp is None:
+        return "n/a"
     datetime = time.gmtime(timestamp)
     result = time.strftime(format, datetime) + ' UTC'
     return result