Update weave_storage.diff

conf/weave_storage.diff

@@ -1,5 +1,5 @@
 722a723,752
-> 	$mail = $username;
+> 	$mail = $auth_user;
 >         $dn = "ou=users,dc=yunohost,dc=org";
 >         $filter = "(&(objectclass=inetOrgPerson)(mail=".$mail."))";
 >         $justthese = array("uid");