Index: trac/env.py
===================================================================
--- trac/env.py	(revision 9343)
+++ trac/env.py	(working copy)
@@ -132,8 +132,8 @@
         """Short description of the project.""")
 
     project_url = Option('project', 'url', '',
-        """URL of the main project web site, usually the website in which
-        the `base_url` resides.""")
+        """Link to the main site of the project, used in notification
+        emails.""")
 
     project_admin = Option('project', 'admin', '',
         """E-Mail address of the project's administrator.""")