[pgpool-committers: 1674] pgpool: Add dubug messages for analyzing errors in if_up_cmd

[Yugo Nagata]

Add dubug messages for analyzing errors in if_up_cmd

Branch
------
V3_3_STABLE

Details
-------
http://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=52776054ba24d0a8780b92e4a8494335567223d6

Modified Files
--------------
watchdog/wd_if.c   |   12 +++++++++---
watchdog/wd_ping.c |    2 +-
2 files changed, 10 insertions(+), 4 deletions(-)