py-srs: add modeline, adjust whitespace

python/py-srs/Portfile

@@ -1,25 +1,27 @@
-PortSystem 1.0
-PortGroup python 1.0
+# -*- 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
 
-name			py-srs
-version			0.30.9
-categories-append	mail
-license			PSF
-platforms		darwin
-supported_archs	noarch
-maintainers		nomaintainer
-description		Sender Rewriting Scheme in Python
-long_description	${description}
+PortSystem          1.0
+PortGroup           python 1.0
 
-homepage		http://bmsi.com/python/pysrs.html
-master_sites	http://bmsi.com/python/
-distname		pysrs-${version}
-checksums		md5 d72c9d04ae8369ec8fc604dfba2fa069
+name                py-srs
+version             0.30.9
+categories-append   mail
+license             PSF
+platforms           darwin
+supported_archs     noarch
+maintainers         nomaintainer
+description         Sender Rewriting Scheme in Python
+long_description    ${description}
 
-python.versions	27
+homepage            http://bmsi.com/python/pysrs.html
+master_sites        http://bmsi.com/python/
+distname            pysrs-${version}
+checksums           md5 d72c9d04ae8369ec8fc604dfba2fa069
+
+python.versions     27
 
 if {${name} ne ${subport}} {
-    post-destroot	{
+    post-destroot {
         xinstall -m 644 -W ${worksrcpath} CHANGES PKG-INFO \
             ${destroot}${prefix}/share/doc/${subport}
     }