[Pgpool-committers] pgpool - pgpool-II: Update TODO.

[User T-ishii]

Log Message:
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Update TODO.

Modified Files:
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    pgpool-II:
        TODO (r1.21 -> r1.22)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/TODO?r1=1.21&r2=1.22)