py-zen: add modeline, fix livecheck

python/py-zen/Portfile

@@ -1,3 +1,5 @@
+# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:ft=tcl:et:sw=4:ts=4:sts=4
+
 PortSystem          1.0
 PortGroup           python 1.0
 
@@ -26,5 +28,10 @@ checksums           rmd160  93933db47c2a56e9c0b1b5e42ace49b13a803d58 \
                     sha256  b4ee66424a1f78c929d500bc74f56a84339ae7cf18b6b9c41117c3c1d16ba87f
 
 if {${name} ne ${subport}} {
-    depends_lib     port:py${python.version}-setuptools
+    depends_lib-append \
+                    port:py${python.version}-setuptools
+
+    livecheck.type  none
+} else {
+    livecheck.name  PyZen
 }