comply with SPDX identifiers

Author: Moth-Tolias

views/package_format_json.dt

@@ -190,7 +190,7 @@ block body
 		|<code>BSL-1.0</code> (Boost Software License),
 		|<code>BSD 2-clause</code>,
 		|<code>BSD 3-clause</code>,
-		|<code>CC0</code> (Creative Commons Zero),
+		|<code>CC0-1.0</code> (Creative Commons Zero v1.0 Universal),
 		|<code>EPL-1.0</code> (Eclipse Public License),
 		|<code>GPL-2.0</code>,
 		|<code>GPL-3.0</code>,

views/package_format_sdl.dt

@@ -174,7 +174,7 @@ block body
 		|<code>BSL-1.0</code> (Boost Software License),
 		|<code>BSD 2-clause</code>,
 		|<code>BSD 3-clause</code>,
-		|<code>CC0</code> (Creative Commons Zero),
+		|<code>CC0-1.0</code> (Creative Commons Zero v1.0 Universal),
 		|<code>EPL-1.0</code> (Eclipse Public License),
 		|<code>GPL-2.0</code>,
 		|<code>GPL-3.0</code>,