[planner: 3/40] build: Fix license tag

[Mart Raudsepp <mraudsepp src gnome org>]

commit 29134452113f1e64304b7b5967a3db981ba558a4
Author: Mart Raudsepp <leio gentoo org>
Date:   Wed Mar 4 10:53:07 2020 +0200

    build: Fix license tag

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index 10b2b860..3eb986e5 100644
--- a/meson.build
+++ b/meson.build
@@ -1,7 +1,7 @@
 project('planner',
   'c',
   version: '0.14.6',
-  license: 'GPL-2',
+  license: 'GPL-2+',
   meson_version: '>= 0.48.0',
 )