return prettified input rule string in rule insert
Instead of the unreadable column-eliminated version.
Example:
Old:
$ openstack congress policy rule create classification \
'server_with_bad_flavor(id) :- nova:servers(id=id,flavor_id=flavor_id),
nova:flavors(id=flavor_id, name=flavor), not permitted_flavor(flavor)'
+---------+----------------------------------------------------------------------------------+
| Field | Value |
+---------+----------------------------------------------------------------------------------+
| comment | |
| id | 80415ef6-ac68-46ee-99f3-511f757ce826 |
| name | None |
| rule | server_with_bad_flavor(id) :- |
| | nova:servers(id, x_21, x_22, x_23, x_24, x_25, x_26, flavor_id, x_28, x_29), |
| | nova:flavors(flavor_id, flavor, x_12, x_13, x_14, x_15, x_16), |
| | not permitted_flavor(flavor) |
+---------+----------------------------------------------------------------------------------+
New:
+---------+----------------------------------------------------------+
| Field | Value |
+---------+----------------------------------------------------------+
| comment | |
| id | 80415ef6-ac68-46ee-99f3-511f757ce826 |
| name | None |
| rule | server_with_bad_flavor(id) :- |
| | nova:servers(id=id,flavor_id=flavor_id), |
| | nova:flavors(id=flavor_id, name=flavor), |
| | not permitted_flavor(flavor) |
+---------+----------------------------------------------------------+
Change-Id: I840d6ff0b35aca09dc3ef630b6b8629228b0b7ce