With Bridges, dirclient and dirmgr errors will become sensitive.

When we have bridges, we'll start asking them for their router descriptors. That means that the identity of a directory that succeeded or failed will now become a sensitive piece of information, that we will need to be concerned about logging.

This will apply mostly to Errors in dirclient and dirmgr.

We need to look at:

• tor-linkspec
• tor-dirclient/tor-dirmgr
• tor-chanmgr
• tor-circmgr
• tor-proto no OwnedChanTargets in the Error type, but we should look at the strings that are formatted to make those errors
• tor-guardmgr no OwnedChanTargets in the Error type, but we should look at the strings that are formatted to make those errors