Sync license texts from SPDX and fix LGPL-2.1-or-later text
Run "reuse download" for all SPDX license texts. Changes are trivial white spaces and newlines, except for LGPL-2.1-or-later, where a wrong license text was stored in the file.
Run "reuse download" for all SPDX license texts. Changes are trivial white spaces and newlines, except for LGPL-2.1-or-later, where a wrong license text was stored in the file.