bug#13141: 24.3.50; Be able to customize the info included by default for `report-emacs-bug'

["Drew Adams" <drew.adams@oracle.com>]

> M-x customize-variable RET report-emacs-bug-no-explanations RET

In my request, it would not be simply a boolean, as suggested by the name you
used.  Users would be able to pick and choose which fields they want to include.

Something like this:

(defcustom report-emacs-bug-included-fields '(version settings major-mode
                                              minor-modes recent-input
                                              recent-messages load-shadows
                                              features)
  "Fields to include by default for command `report-emacs-bug'.
The fields are included automatically in the buffer where you edit
your bug report."
  :type '(set
          (const :tag "Emacs version info" version)
          (const :tag "Important settings" settings)
          (const :tag "Major mode"         major-mode)
          (const :tag "Minor modes"        minor-modes)
          (const :tag "Recent input"       recent-input)
          (const :tag "Recent messages"    recent-messages)
          (const :tag "Load-path shadows"  load-shadows)
          (const :tag "Features"           features))
  :group 'convenience)