emacs: honoring notmuch-show-insert-part-text/html for 'w3m renderer

[Jose Antonio Ortega Ruiz <jao@gnu.org>]

Hi,

notmuch-show-insert-part-text/html correctly binds shr-blocked-images to
notmuch-show-text/html-blocked-images when using 'shr as the
mm-text-html-renderer.  However, when the latter is not shr, the
function only binds gnus-blocked-images, which is not used by the 'w3m
rendered.  The corresponding variable to bind is in the latter case
w3m-ignored-image-url-regexp, and something like the simple patch below
seem to make things work, at least for me.

Cheers,
jao

diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
index 9a95eb34..0c4fc110 100644
--- a/emacs/notmuch-show.el
+++ b/emacs/notmuch-show.el
@@ -823,7 +823,8 @@ will return nil if the CID is unknown or cannot be
retrieved."
     (let ((mm-inline-text-html-with-w3m-keymap nil)
          ;; FIXME: If we block an image, offer a button to load external
          ;; images.
-         (gnus-blocked-images notmuch-show-text/html-blocked-images))
+         (gnus-blocked-images notmuch-show-text/html-blocked-images)
+         (w3m-ignored-image-url-regexp
notmuch-show-text/html-blocked-images))
       (notmuch-show-insert-part-*/* msg part content-type nth depth
button))))

 ;;; Functions used by notmuch-show--insert-part-text/html-shr