Proposed change to libraries

[Vlad Dumitrescu]

I agree too.
 
> Disgusting. It's almost as bad and surprising as:
> 
> 2> length(self()).
> {-73, 3.14} 

Well, at least that's fixed:

Eshell V5.4.3  (abort with ^G)
(wolf@REDACTED)1> length(self()).
** exited: {badarg,[{erlang,length,[<0.37.0>]},
                    {erl_eval,do_apply,5},
                    {shell,exprs,6},
                    {shell,eval_loop,3}]} **

regards,
Vlad