[Pgpool-committers] pgpool - pgpool-II: Add mention about pgpool_switch_xlog.

[User T-ishii]

Log Message:
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Add mention about pgpool_switch_xlog.

Modified Files:
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    pgpool-II/doc:
        pgpool-en.html (r1.62 -> r1.63)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/doc/pgpool-en.html?r1=1.62&r2=1.63)