Fix the problem with undelete-mailbox command when listing deleted mailboxes command actually doesn't replace placeholders with values, which prevents correctly list deleted mailboxes and then undelete them.
Test Plan: none
Reviewers: vanmeeuwen, machniak, mollekopf
Reviewed By: mollekopf
Subscribers: mollekopf, machniak, vanmeeuwen
Maniphest Tasks: T2648
Differential Revision: https://git.kolab.org/D548