Orbot hides the errors of the iptables rules

The transparent proxy of orbot doesn't run in my phone. It shows a error in the notification area.

Yesterday, I decided review the debug log with adb and I found a (in my opinion) important problem in orbot.

You're running the rules of iptables with "/whatever/iptables rules | | exit". I know that my problem is due to some iptables rules but I can't see the error because you hide the error using "| | exit".

You can run each rule individually and check the exit code each time. I think my suggestion is better than the use of "| | exit" because with this orbot doesn't hide the errors.

Sorry if I don't send a patch but my know about java code is near to 0 :)

Trac:
Username: juanfra684