Minor torrc parsing bug

Very minor bug with, I'm guessing, torrc parsing.

Steps to repro:

1. In your torrc include "ExitPolicy" without a policy among other entries, ex: ExitPolicy ExitPolicy reject :

2. Start tor, these values are excepted without issue.

3. Query the ExitPolicy via the control port (GETCONF ExitPolicy)

Results: Whenever the exit policy is queried the following warning is given May 26 21:27:12.815 [warn] The abbreviation 'ExitPolic' is deprecated. Please use 'ExitPolicy' instead

Oddly, this warning is only shown at the command line (ie, doesn't seem to be provided to listening controllers).