elog.c logic bug?

I have just been staring for some time at the logic in 
src/backend/utils/error/elog.c:send_message_to_server_log(), which 
contains this fragment near the end:


   /* Write to stderr, if enabled */   if ((Log_destination & LOG_DESTINATION_STDERR) || whereToSendOutput 
== DestDebug)   {
#ifdef WIN32
       /*        * In a win32 service environment, there is no usable stderr. 
Capture        * anything going there and write it to the eventlog instead.        *        * If stderr redirection is
active,it's ok to write to stderr 
 
because        * that's really a pipe to the syslogger process. Unless we're 
in the        * postmaster, and the syslogger process isn't started yet.        */       if ((!Redirect_stderr ||
am_syslogger|| (!IsUnderPostmaster && 
 
SysLoggerPID==0)) && pgwin32_is_service())           write_eventlog(edata->elevel, buf.data);       else
#endif           fprintf(stderr, "%s", buf.data);   }
   /* If in the syslogger process, try to write messages direct to file */   if (am_syslogger)
write_syslogger_file(buf.data,buf.len);
 

ISTM that this is a bug - the last statement should be inside the STDERR 
block above, the last part of which would then read:
   /* If in the syslogger process, try to write messages direct to file */   if (am_syslogger)
write_syslogger_file(buf.data,buf.len);  else       fprintf(stderr, "%s", buf.data);
 

If not I have missed something - why would the syslogger be trying to 
write to its output (possibly for the second time) regardless of what 
Log_destination is set to?

cheers

andrew