[balooctl] Switch multiline output to new helper

Summary:
Output is mostly unchanged, but symlinks are no longer shown
as "Basic Indexing: Scheduled."

Depends on D20617.

Test Plan: balooctl status <file>

Reviewers: Baloo, Frameworks, ngraham, astippich, poboiko

Reviewed By: Baloo, ngraham

Subscribers: kde-frameworks-devel

Tags: Frameworks, Baloo

Differential Revision: https://phabricator.kde.org/D20620