Thread: pgsql: Remove three unnecessary casts from a pointer type to char * when

Log Message:
-----------
Remove three unnecessary casts from a pointer type to char * when calling
pfree().

Modified Files:
--------------
    pgsql/src/backend/postmaster:
        pgstat.c (r1.82 -> r1.83)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/postmaster/pgstat.c.diff?r1=1.82&r2=1.83)
    pgsql/src/pl/plpgsql/src:
        gram.y (r1.63 -> r1.64)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/pl/plpgsql/src/gram.y.diff?r1=1.63&r2=1.64)