[Serdev] core dump with lcr module

[Juha Heinanen]

Maxim Sobolev writes:

 > Why so? They are very useful for things like URI rewrite to avoid code 
 > duplication.

because you never know when a new parameter is introduced to a
function that do_action is hiding from you and then you will miss to set
px for it.  this happened to me already once.  if you use the function
directly, for example, append_branch, you get compilation error and thus
know to add the new param.

-- juha