Minor comment tweaks.

git-svn-id: http://viewvc.tigris.org/svn/viewvc/trunk@1523 8cb11bc2-c004-0410-86c3-e597b4017df7

lib/viewvc.py

@@ -787,7 +787,7 @@ def check_freshness(request, mtime=None, etag=None, weak=0):
   else:
     isfresh = 0
 
-  ## require revalidation after 15 minutes ...
+  # require revalidation after the configured amount of time
   if cfg and cfg.options.http_expiration_time >= 0:
     expiration = compat.formatdate(time.time() +
                                    cfg.options.http_expiration_time)

viewvc.conf.dist

@@ -58,6 +58,8 @@
 #       svn_roots (for Subversion)
 #       root_parents (for CVS or Subversion)
 #       default_root
+#       root_as_url_component
+#       rcs_dir
 #       mime_types_file
 #       the many options in the [utilities] section
 #