Bug#747664: julia--get-object breaks because of mapcan

[Juliusz Chroboczek]

Package: ess
Version: 13.09-1-1

Typing TAB in an iESS buffer in Julia mode sometimes breaks because
mapcan is not defined.  A simple workaround is to (load 'cl), but it
would perhaps be better to use nconc(mapcar) instead.

I am running emacs24 24.3+1-3.

Here's a backtrace:

Debugger entered--Lisp error: (void-function mapcan)
  mapcan(#[(mod) "\303\304\232\203  julia--get-objects(#<process julia> nil)
  julia-object-completion()
  completion--capf-wrapper(julia-object-completion all)
  run-hook-wrapped(completion--capf-wrapper julia-object-completion all)
  completion-at-point()
  call-interactively(completion-at-point nil nil)