[pgpool-committers: 7639] pgpool: Fix verify_backend_node_status().

[Tatsuo Ishii]

Fix verify_backend_node_status().

It is possible that backend_hostname is Unix domain socket but
wal_receiver connects via TCP/IP localhost.
verify_backend_node_status() should accept this as normal.  This
actually happened in the Pgpool-II cluster created by pgpool_setup.  I
found this while testing detach_false_primary.

Branch
------
V4_2_STABLE

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=66fb0252aca2d954c338ddf7a4507d3c1b4d65bd

Modified Files
--------------
src/main/pgpool_main.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)