[pgpool-committers: 1626] pgpool: Fix to output error message when if_up_cmd fails.

[Yugo Nagata]

Fix to output error message when if_up_cmd fails.

This is suggested by Sergey Arlashin in [pgpool-general: 2457].
(including commit: 6d6afb6ebffa45d32f05288dd0ab2235a495c0ed)

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=ab125ec6a4bbbe23a3444c01beca9a2b09638147

Modified Files
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src/watchdog/wd_if.c     |   43 ++++++++++++++++++++++++++++++++++++++-----
src/watchdog/wd_packet.c |   23 ++++++++++++++++++-----
2 files changed, 56 insertions(+), 10 deletions(-)