Fix deadlock by enabling log_destination = syslog reported in bug tracker http://www.pgpool.net/mantisbt/view.php?id=9.  The workaround is blocking signal before calling vsyslog in pool_log etc. This has been already done log_destination = stderr case. Patch provided by Gilles Darold.
Fix deadlock by enabling log_destination = syslog reported in bug
tracker http://www.pgpool.net/mantisbt/view.php?id=9.  The workaround
is blocking signal before calling vsyslog in pool_log etc. This has
been already done log_destination = stderr case. Patch provided by
Gilles Darold.

Committed to master and  V3_1_STABLE.

treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres