Thread: pgsql: Fix obsolete comment regarding FSM truncation.

Log Message:
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Fix obsolete comment regarding FSM truncation.

Modified Files:
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    pgsql/src/backend/catalog:
        heap.c (r1.345 -> r1.346)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/catalog/heap.c?r1=1.345&r2=1.346)