[tor-bugs] #4662 [Tor Relay]: Revert changes from bug4312 and thereafter until 0.2.4.x

[Tor Bug Tracker & Wiki]

#4662: Revert changes from bug4312 and thereafter until 0.2.4.x
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    Reporter:  nickm      |       Owner:                    
        Type:  defect     |      Status:  closed            
    Priority:  normal     |   Milestone:  Tor: 0.2.3.x-final
   Component:  Tor Relay  |     Version:                    
  Resolution:  fixed      |    Keywords:                    
      Parent:             |      Points:                    
Actualpoints:             |  
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Comment(by asn):

 `f77f9bd` and `40a87c4` were also reverted.

 `f77f9bd` was "appease check-spaces" and got reverted by
 `53f535aeb863204470379b2da4631770fa10b13f`. It was a commit by Sebastian
 that made check-spaces happy.

 `40a87c4` was "indent; add comment" and got reverted by
 `75134c6c86e54c10fd9e11c4345aadcdabc0f8fb`. It was a commit by Nick that
 improved the new certificate serial number generation code.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4662#comment:13>
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