Bug 13861: \n in confirmation message on closing a budget

Bug 13861: \n in confirmation message on closing a budget

\n in strings doesn't translate well, so we move it outside
the translated string.

To test:
- create at least 2 budgets
- close one of the budgets (moving orders from one budget to the other)
- after selecting the budget to move your orders to, save
- the confirmation message shown should read:

You have chosen to move all unreceived orders from 'budget 1' to 'budget 2'.
This action cannot be reversed. Do you wish to continue?

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>