Minor comment fixes to Tor master
Please merge my branch comments-20151123 from https://github.com/teor2345/tor.git
It fixes up 3 minor comment typos from different areas of the codebase in 3 separate commits.
Please merge my branch comments-20151123 from https://github.com/teor2345/tor.git
It fixes up 3 minor comment typos from different areas of the codebase in 3 separate commits.