Resolve "LIST parameter is used incorrectly as a file tag"

Closes #1 (closed) by adding the file tag manually to the output.

policy/list-30day-with-excludes

@@ -8,8 +8,7 @@ define(access_age,
   (DAYS(CURRENT_TIMESTAMP) - DAYS(ACCESS_TIME))
 )
 
-/* note: subtitution via -M for file tag */
-RULE 'old_files' LIST 'FILETAG'
+RULE 'old_files' LIST 'no_extern_list'
   SHOW ('|size='   || varchar(FILE_SIZE) ||
         '|kballoc='|| varchar(KB_ALLOCATED) || 
         '|access=' || varchar(ACCESS_TIME) ||