[PATCH] emacs: Fix display of highlighted line in notmuch-show

[Austin Clements]

Quoth Michal Sojka on Feb 14 at 11:24 am:
> When notmuch-search-line-faces is used to set background color in search
> results, the highlight of the current line is not always displayed
> correctly. This patch fixes that by increasing the priority property of
> the highlight overlay.

LGTM.  Too bad hl-line doesn't have a mode hook we could do this in.