[license] use GPL-3.0 for patch .license files

a000ecad · Mathis Kelm · 0552f484 · a000ecad · a000ecad
Commit a000ecad authored 1 year ago by Mathis Kelm
--- a/patches/istl-2.6.patch.license
+++ b/patches/istl-2.6.patch.license
+SPDX-FileCopyrightInfo: Copyright © DuMux Project contributors, see AUTHORS.md in root folder
+SPDX-License-Identifier: GPL-3.0-or-later
--- a/patches/opm_common_2021_10.patch.license
+++ b/patches/opm_common_2021_10.patch.license
+SPDX-FileCopyrightInfo: Copyright © DuMux Project contributors, see AUTHORS.md in root folder
+SPDX-License-Identifier: GPL-3.0-or-later