On Tue, Jan 5, 2016 at 12:32 PM Glenn Morris <rgm@gnu.org> wrote:

Andrew Hyatt wrote:

> Sorry this bug has been open for so long, in fact it has the rare
> privelage of being open for so long the package you are having a problem
> with (longlines-mode), no longer is part of emacs.

It's in lisp/obsolete/.
Eli thinks such things should still be fixed:

http://lists.gnu.org/archive/html/bug-gnu-emacs/2016-01/msg00171.html

Is that a widespread opinion? I disagree, FWIW. One of the big purposes of obsoleting things is to reduce the number of things that must be maintained.