[tor-bugs] #2322 [Tor Client]: circuit_build_times_disabled() and others missing function comments

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#2322: circuit_build_times_disabled() and others missing function comments
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 Reporter:  arma        |       Owner:  mikeperry         
     Type:  defect      |      Status:  new               
 Priority:  normal      |   Milestone:  Tor: 0.2.2.x-final
Component:  Tor Client  |     Version:                    
 Keywords:              |      Parent:                    
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 There are many functions at the beginning of circuitbuild.c that are
 missing comments as to what they do and why they do it.

 Also related to #2317

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/2322>
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