[tor-bugs] #5557 [Tor Bridge]: Tor helpers' launch error message contains useless whitespace

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#5557: Tor helpers' launch error message contains useless whitespace
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 Reporter:  asn         |          Owner:                    
     Type:  defect      |         Status:  new               
 Priority:  normal      |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Bridge  |        Version:                    
 Keywords:              |         Parent:                    
   Points:              |   Actualpoints:                    
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Comment(by asn):

 The other idea is to, instead of filling `hex_errno` with spaces, fill
 `hex_errno` with an invisible ASCII character. This seems stupidly hacky
 and clumsy though.

 I'm wondering what I'm missing...

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/5557#comment:4>
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