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_4_STABLE

Modified Files:
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pgsql/contrib/chkpass:
chkpass.c (r1.11 -> r1.11.2.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/chkpass/chkpass.c.diff?r1=1.11&r2=1.11.2.1)
chkpass.sql.in (r1.4 -> r1.4.4.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/chkpass/chkpass.sql.in.diff?r1=1.4&r2=1.4.4.1)
pgsql/contrib/isbn_issn:
isbn_issn.sql.in (r1.9 -> r1.9.4.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/isbn_issn/isbn_issn.sql.in.diff?r1=1.9&r2=1.9.4.1)
pgsql/contrib/lo:
lo.sql.in (r1.10 -> r1.10.4.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/lo/lo.sql.in.diff?r1=1.10&r2=1.10.4.1)
pgsql/contrib/miscutil:
misc_utils.c (r1.15 -> r1.15.4.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/miscutil/misc_utils.c.diff?r1=1.15&r2=1.15.4.1)
misc_utils.h (r1.10 -> r1.10.8.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/miscutil/misc_utils.h.diff?r1=1.10&r2=1.10.8.1)
misc_utils.sql.in (r1.6 -> r1.6.4.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/miscutil/misc_utils.sql.in.diff?r1=1.6&r2=1.6.4.1)
pgsql/contrib/userlock:
user_locks.sql.in (r1.4 -> r1.4.4.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/userlock/user_locks.sql.in.diff?r1=1.4&r2=1.4.4.1)