E.g.
2015-11-16 15:18:25 tor: Disconnected from Tor control port 127.0.0.1:9051, trying to reconnect
2015-11-16 15:18:26 tor: Disconnected from Tor control port 127.0.0.1:9051, trying to reconnect
2015-11-16 15:18:27 tor: Disconnected from Tor control port 127.0.0.1:9051, trying to reconnect
2015-11-16 15:18:30 tor: Disconnected from Tor control port 127.0.0.1:9051, trying to reconnect
2015-11-16 15:18:33 tor: Disconnected from Tor control port 127.0.0.1:9051, trying to reconnect
2015-11-16 15:18:38 tor: Disconnected from Tor control port 127.0.0.1:9051, trying to reconnect
2015-11-16 15:18:46 tor: Disconnected from Tor control port 127.0.0.1:9051, trying to reconnect
2015-11-16 15:18:57 tor: Disconnected from Tor control port 127.0.0.1:9051, trying to reconnect
2015-11-16 15:19:14 tor: Disconnected from Tor control port 127.0.0.1:9051, trying to reconnect
2015-11-16 15:19:40 tor: Disconnected from Tor control port 127.0.0.1:9051, trying to reconnect
2015-11-16 15:20:19 tor: Disconnected from Tor control port 127.0.0.1:9051, trying to reconnect
2015-11-16 15:21:16 tor: Disconnected from Tor control port 127.0.0.1:9051, trying to reconnect
2015-11-16 15:22:43 tor: Disconnected from Tor control port 127.0.0.1:9051, trying to reconnect
Keeping trying to connect makes sense, as the user may (re)start Tor later. The exponential back-off is also clearly working.
However, it shouldn't be logging this all the time (possibly only with -debug=tor), and a "disconnected" message is wrong if it cannot even connect.
