Add elixir format variables to elixir group as well

Author: jsmestad

elixir-format.el

@@ -28,11 +28,13 @@
 (defcustom elixir-format-arguments nil
   "Additional arguments to 'mix format'"
   :type '(repeat string)
+  :group 'elixir
   :group 'elixir-format)
 
 (defcustom elixir-format-hook nil
   "Hook called by `elixir-format'."
   :type 'hook
+  :group 'elixir
   :group 'elixir-format)