Add more SPDX license headers
This is a combination of commits: one adds some more LGPL-2.1-or-later headers automatically, one adds some LGPL-2.1-or-later headers manually, and one manually adds a GPL-2.0-or-later header.
The choice of files to add headers to is fairly arbitrary. I’m just picking the easy ones out of the reuse lint output at the moment.
With this MR applied, the reuse lint summary is now:
# SUMMARY
* Bad licenses:
* Deprecated licenses:
* Licenses without file extension:
* Missing licenses:
* Unused licenses:
* Used licenses: Apache-2.0, CC0-1.0, GPL-2.0-or-later, LGPL-2.1-or-later, LLVM-exception, MIT
* Read errors: 0
* Files with copyright information: 1594 / 2014
* Files with license information: 1380 / 2014Helps: #1415