[PATCH 2/2] LICENSE: add SPDX identifiers

[Paul Spooren]

On Tue Jul 28, 2020 at 11:32 PM HST, Paul Spooren wrote:
> SPDX license header follow a machine readable and versioned identifier
> format for licenses. The adoption to such system would simplify
> scanning of licenses within OpenWrt.
>
> Adopted from the Linux Kernel[0] store store SPDX identifiers at the
> top of the LICENSE file.
>
> Both the `GPL-2.0` and `GPL-2.0+` identifiers are deprecated[1] and are
> in contrast to the Linux Kernel not added. When adding such headers it
> should be the latest SPDX version.
>
> [0]:
> https://github.com/torvalds/linux/commit/255247c2770ada6edace04173b35307869b47d99
> [1]: https://spdx.org/licenses/
>
> Signed-off-by: Paul Spooren <mail at aparcar.org>

I updated this patch to "Rejected" as instead of using these
identifiers, the license should just be renamed to the correct SPDX
name inside the LICENSES folder.

> ---
> LICENSE | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
>
> diff --git a/LICENSE b/LICENSE
> index d159169d10..687bdddb11 100644
> --- a/LICENSE
> +++ b/LICENSE
> @@ -1,3 +1,16 @@
> +Valid-License-Identifier: GPL-2.0-only
> +Valid-License-Identifier: GPL-2.0-or-later
> +SPDX-URL: https://spdx.org/licenses/GPL-2.0.html
> +Usage-Guide:
> + To use this license in source code, put one of the following SPDX
> + tag/value pairs into a comment according to the placement
> + guidelines in the licensing rules documentation.
> + For 'GNU General Public License (GPL) version 2 only' use:
> + SPDX-License-Identifier: GPL-2.0-only
> + For 'GNU General Public License (GPL) version 2 or any later version'
> use:
> + SPDX-License-Identifier: GPL-2.0-or-later
> +License-Text:
> +
> GNU GENERAL PUBLIC LICENSE
> Version 2, June 1991
>  
> --
> 2.25.1