Bug 21930: Reworded message on permissions.inc

Bug 21930: Reworded message on permissions.inc

1. Go to patrons account, more, Set Permissions.
2. Dropdown the Parameters section.
3. Text should display "If not set the logged in user could only edit
circulation rules for its the own library (please note that
        manage_circ_rules is still required)"
4. Apply patch and reload page
5. Text should now display "Edit circulation rules from any library. If
not set the logged in user could only edit circulation rules for their
own library (please note that manage_circ_rules is still required)"

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>