[pgpool-committers: 7308] pgpool: Delete any pre-existing watchdog command socket file at startup

[Muhammad Usama]

Delete any pre-existing watchdog command socket file at startup

Abnormal termination of Pgpool leaves behind the dangling socket files
and prevent Pgpool-II from starting up.
The solution is to delete any pre-existing watchdog command socket
file before binding a watchdog command socket.

Patch provided by Masaya Kawamoto

Branch
------
V3_6_STABLE

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=31953646e3c58c4920ed3bc8dd67f7c8967712c0
Author: Muhammad Usama <m.usama at highgo.ca>

Modified Files
--------------
src/watchdog/watchdog.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)