Thread: pgsql: Fix volatility marking for the generate_series and

Log Message:
-----------
Fix volatility marking for the generate_series and generate_subscripts families
of functions.

Modified Files:
--------------
    pgsql/src/include/catalog:
        catversion.h (r1.451 -> r1.452)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/catversion.h?r1=1.451&r2=1.452)
        pg_proc.h (r1.493 -> r1.494)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/pg_proc.h?r1=1.493&r2=1.494)