Migrate license strings to SPDX short identifiers
Does your feature request relate to a problem? Please describe it.
Identifying the license for open source software is important for both reporting and license compliance. However, determining the license can sometimes be difficult due to lack of information or ambiguity. Even when license information is available, the lack of consistent notation can make automating license determination very difficult, requiring a lot of human effort.
Describe the desired solution
Short identifiers from the SPDX license list can be used to specify file-level license information.
Describe the alternatives you considered.
Short identifiers provided by the SPDX license project seem to be the best approach and are already used by larger projects such as KDE and already sporadically in the dbus sources.
Additional information
There are also already tools that can help migrate the current license information, such as licensedigger which is used in the migration of KDE projects.