Also change the license to GPL 3 or later, like all other files. (cherry picked from commit 2a48a5f868)
2a48a5f868
(cherry picked from commit d25348ca24)
d25348ca24
This is the code from the 'gimp-2.9' branch of the plug-in, integrated into GIMP's build system. (cherry picked from commit 79bc2dc1ef)
79bc2dc1ef