contactinfo with quotes fails without explaining why
Set
contactinfo "Pronoia Relay Operators" <tor@pronoia.dk>
in your torrc.
Then start Tor:
Jan 13 18:55:04.625 [notice] Tor v0.2.4.7-alpha-dev (git-17c24b3118224d65) running on Linux with Libevent 2.0.19-stable and OpenSSL 1.0.1c.
Jan 13 18:55:04.625 [notice] Tor can't help you if you use it wrong! Learn how to be safe at https://www.torproject.org/download/download#warning
Jan 13 18:55:04.625 [notice] This version is not a stable Tor release. Expect more bugs than usual.
Jan 13 18:55:04.625 [notice] Read configuration file "/usr/local/etc/tor/torrc".
Jan 13 18:55:04.630 [err] Reading config failed--see warnings above.
No hints!