[tor-bugs] #5401 [Tor Client]: tag control log events so arm can know they're from the same place in the code

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#5401: tag control log events so arm can know they're from the same place in the
code
-------------------------+--------------------------------------------------
 Reporter:  arma         |          Owner:                  
     Type:  enhancement  |         Status:  new             
 Priority:  normal       |      Milestone:  Tor: unspecified
Component:  Tor Client   |        Version:                  
 Keywords:               |         Parent:                  
   Points:               |   Actualpoints:                  
-------------------------+--------------------------------------------------

Comment(by arma):

 Branch task5401 in my git repo is a start here. But I quickly ran into a
 problem:

 {{{
 4.1.5. Log messages

   The syntax is:
      "650" SP Severity SP ReplyText CRLF
   or
      "650+" Severity CRLF Data 650 SP "OK" CRLF

      Severity = "DEBUG" / "INFO" / "NOTICE" / "WARN"/ "ERR"
 }}}

 There's no backward-compatible way in the protocol to send anything on the
 650 DEBUG line except for the log message! Ooops.

 This feature will be harder than I realized.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/5401#comment:1>
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