[tor-bugs] #32295 [Core Tor/Tor]: "Skipping obsolete configuration option." doesn't say which one

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#32295: "Skipping obsolete configuration option." doesn't say which one
------------------------------+--------------------------------
     Reporter:  arma          |      Owner:  (none)
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: 0.4.2.x-final
    Component:  Core Tor/Tor  |    Version:  Tor: 0.4.2.1-alpha
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
------------------------------+--------------------------------
 In Tor 0.3.5.x:
 {{{
 app/config/confparse.c:
 log_warn(LD_CONFIG, "Skipping obsolete configuration option '%s'",
 c->key);
 }}}
 But in 0.4.2.3-alpha:
 {{{
 lib/confmgt/type_defs.c:
 log_warn(LD_GENERAL, "Skipping obsolete configuration option.");
 }}}

 Resulting in log messages like:
 {{{
 Oct 25 16:19:28.906 [warn] Skipping obsolete configuration option.
 Oct 25 16:19:28.906 [warn] Skipping obsolete configuration option.
 }}}

 which are not as helpful as they could be.

 The bug went in with commit c60a85d2, which I think first went into
 0.4.2.1-alpha.

 The new file has a XXXX next to this line:
 {{{
   // XXXX move this to a higher level, once such a level exists.
   log_warn(LD_GENERAL, "Skipping obsolete configuration option.");
 }}}

 but I see that most tickets like #29211 and #30866 are scheduled for
 0.4.3.x, and this is an 0.4.2 bug so I am filing a separate ticket.

 Bug reported by OFFShare in irc.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32295>
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