Prison: Convert license statements to SPDX identifiers

Authored by cordlandwehr on Feb 1 2020, 6:13 PM.

Description

Prison: Convert license statements to SPDX identifiers

Summary:
Update all existing license and copyright statements
to SPDX identifiers.

Reviewers: cgiboudeaux

Reviewed By: cgiboudeaux

Subscribers: cgiboudeaux, kde-frameworks-devel

Tags: Frameworks

Maniphest Tasks: T11550

Differential Revision: https://phabricator.kde.org/D27092