pgsql: Make sure contrib C functions are marked strict where needed.

Log Message:
-----------
Make sure contrib C functions are marked strict where needed.
Kris Jurka

Tags:
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REL7_3_STABLE

Modified Files:
--------------
    pgsql/contrib/chkpass:
        chkpass.sql.in (r1.3 -> r1.3.2.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/chkpass/chkpass.sql.in.diff?r1=1.3&r2=1.3.2.1)
    pgsql/contrib/isbn_issn:
        isbn_issn.sql.in (r1.7 -> r1.7.2.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/isbn_issn/isbn_issn.sql.in.diff?r1=1.7&r2=1.7.2.1)
    pgsql/contrib/lo:
        lo.sql.in (r1.8.2.1 -> r1.8.2.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/lo/lo.sql.in.diff?r1=1.8.2.1&r2=1.8.2.2)
    pgsql/contrib/miscutil:
        misc_utils.c (r1.14 -> r1.14.2.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/miscutil/misc_utils.c.diff?r1=1.14&r2=1.14.2.1)
        misc_utils.h (r1.10 -> r1.10.4.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/miscutil/misc_utils.h.diff?r1=1.10&r2=1.10.4.1)
        misc_utils.sql.in (r1.5 -> r1.5.2.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/miscutil/misc_utils.sql.in.diff?r1=1.5&r2=1.5.2.1)
    pgsql/contrib/userlock:
        user_locks.sql.in (r1.3 -> r1.3.2.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/userlock/user_locks.sql.in.diff?r1=1.3&r2=1.3.2.1)