function names are case-insensitive but it's a good idea to call functions

as they appear in their declaration. 
So all functions names that manipulate url like make_index_url() 
are write with lowercase


git-svn-id: http://piwigo.org/svn/trunk@1503 68402e56-0260-453c-a942-63ccdbb3a9ee

include/picture_comment.inc.php

@@ -135,7 +135,7 @@ if ($page['show_comments'])
   }
 
   $page['navigation_bar'] = create_navigation_bar(
-    duplicate_picture_URL(array(), array('start')),
+    duplicate_picture_url(array(), array('start')),
     $row['nb_comments'],
     $page['start'],
     $conf['nb_comment_page'],