Backup : Add game saves prune task.

app/bin/home/backup

@@ -52,6 +52,11 @@ cd ${path_docker}
 archive_prune Docker 7
 cd -
 
+# Prune game saves.
+cd "${path_backup}/media/save/"
+archive_prune Save 1
+cd -
+
 # Backup some media.
 cd ${path_src}/media/
 paper=$(archive_fast paper/)