[Pgpool-committers] pgpool - pgpool-II: Fix double free in rewrite_timestamp_insert().

[User Kitagawa]

Log Message:
-----------
Fix double free in rewrite_timestamp_insert().
This caused the failure in trigger of regression test.

Modified Files:
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    pgpool-II:
        pool_timestamp.c (r1.18 -> r1.19)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_timestamp.c?r1=1.18&r2=1.19)