prettify feed

feedcake.py

@@ -201,7 +201,7 @@ def process_feed(feed_url, output_filename):
         f_content.close
 
     f = open(public_path + '/' + output_filename, 'w')
-    f.write(str(feed_soup))
+    f.write(str(feed_soup.prettify()))
     f.close()