pgsql: This makes all the \dX commands (most importantly to most: \df)

Log Message:
-----------
This makes all the \dX commands (most importantly to most: \df) work
like \dt does, in that it requires a \dXS to see system items.

Greg Sabino Mullane

Modified Files:
--------------
    pgsql/src/bin/psql:
        command.c (r1.200 -> r1.201)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/command.c?r1=1.200&r2=1.201)
        describe.c (r1.193 -> r1.194)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/describe.c?r1=1.193&r2=1.194)
        describe.h (r1.37 -> r1.38)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/describe.h?r1=1.37&r2=1.38)
        help.c (r1.133 -> r1.134)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/help.c?r1=1.133&r2=1.134)