Patches are shown on github with a fixed width (no matter how wide the window
is). When line numbers are high (we have some files with 5 digit line numbers),
the diff does not fit, and horizontal scrolling must be used when viewing the
patch. This is super annoying. Let's reduce the width a bit. I think 109 is
still very wide, but at least the github issue should be alleviated.
After upgrading to emacs-26.1-1.fc28.x86_64 I noticed that our
.dir-locals.el files weren't honoured anymore (specifically the fill
column variable is not correctly set for c-mode files). I finally
tracked this down to the order in which items are listed in
.dir-locals.el: if the "nil" one is listed last everything works,
otherwise, it's the one that is applied instead of the c-mode one.
This patch simply swaps the entries, and puts the "nil" one last. My
emacs lisp fu is a bit too limited to understand the full impact for
this, and why emacs 26.1 changed behaviour in this regard, but from an
outsider's view the order shouldn't negatively affect things otherwise,
hence this patch.
man/.dir-locals is to keep indentation under control.
This makes it much easier to compile and run those examples, c.f. #7578.
v2:
- copy more of .dir-locals.el from the root to man/.dir-locals.el
(I though emacs would inherit from the one in the parent dir, but
it seems it just uses its own broken defaults, including
indent-tabs-mode by default.)
