[wpa_supplicant] send debug messages to syslog when daemonized

[Cristian Ionescu-Idbohrn]

I'm running wpa_supplicant on an embeded system and I badly need this
feature.

Here's my lame attempt to send debug messages to syslog when
wpa_supplicant runs daemonized.  I'm sure a better solution will be
available soon, but I had to have usable hack now :)

Should continue to run as it did before when run in foreground.

When daemonized, detailed debug messages are skipped.  No hexdumps, for
example.  No message will show up unless the '-d' option is specified on
the command line.  The presennce/absence of the '-B' option on the command
line will implicitly determine where the debug messages go.

  CONFIG_NO_STDOUT_DEBUG -> CONFIG_NO_DEBUG

continues to strip all debugging code.


Cheers,
Cristian
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