[Pgpool-committers] pgpool - pgpool-II: Remove unnecessary function declaration for

[User T-ishii]

Log Message:
-----------
Remove unnecessary function declaration for child_exit()

Add comments to child_exit() which had no comments at all

Modify child_exit() so that it sends terminate mesagges before
exiting. This will prevent backend process from being idle
waiting for TCP keepalive event occurs.
This is not good since a backend process may hold locking on
certain tables.

Modified Files:
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    pgpool-II:
        child.c (r1.25 -> r1.26)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/child.c.diff?r1=1.25&r2=1.26)