orafce - orafce: Adjust arguments of decode() so that it can work even

Log Message:
-----------

Adjust arguments of decode() so that it can work even if all value-arguments are literals.

Modified Files:
--------------
orafce:
orafunc.sql.in (r1.58 -> r1.59)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/orafunc.sql.in?r1=1.58&r2=1.59)
uninstall_orafunc.sql (r1.9 -> r1.10)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/uninstall_orafunc.sql?r1=1.9&r2=1.10)
orafce/expected:
orafunc.out (r1.26 -> r1.27)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/expected/orafunc.out?r1=1.26&r2=1.27)
orafce/sql:
orafunc.sql (r1.24 -> r1.25)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/sql/orafunc.sql?r1=1.24&r2=1.25)