[Pgpool-committers] pgpool - pgpool-II: Fix pool_flush_it() so that it does not complain

[User T-ishii]

Log Message:
-----------
Fix pool_flush_it() so that it does not complain when failed to flush
to frontend. Also add info to the message if it was backend or
frontend to avoid confusion.

Modified Files:
--------------
    pgpool-II:
        pool_stream.c (r1.16 -> r1.17)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_stream.c?r1=1.16&r2=1.17)