[libsoup] Clarify license listed in meson

[Patrick Griffis <pgriffis src gnome org>]

commit 28df3d238e4aa6c6b9346e8b15f57877c4a3cfd9
Author: Patrick Griffis <pgriffis igalia com>
Date:   Sun Jan 16 20:42:49 2022 +0000

    Clarify license listed in meson
    
    Closes #161

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index faeb5019..652d328a 100644
--- a/meson.build
+++ b/meson.build
@@ -1,7 +1,7 @@
 project('libsoup', 'c',
         version: '3.0.4',
         meson_version : '>= 0.53',
-        license : 'LGPL2',
+        license : 'LGPL-2.0-or-later',
         default_options : [
           'c_std=gnu99',
           'warning_level=2',