[pgpool-committers: 2396] pgpool: Restore SIGCHLD handler to its original after executing if_up/d

[Yugo Nagata]

Restore SIGCHLD handler to its original after executing if_up/down_cmd

Previously SIGCHLD was set to SIGIGN always after if_up/down_cmd.
This led to a incorrect error handling of ping or other commands
execution, and warning messages were output to log even when the
command exited successfully.

Branch
------
V3_3_STABLE

Details
-------
http://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=b9e532b9ab50b1cf1d090a187016a1d155ebc4fd

Modified Files
--------------
watchdog/wd_if.c |    8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)