Use shr as default for mm-text-html-renderer

* lisp/gnus/mm-decode.el (mm-text-html-renderer): Use 'shr' as
default to avoid a nil value.
Problem reported by Mattias Engdegård <mattiase@acm.org>.

diff --git a/lisp/gnus/mm-decode.el b/lisp/gnus/mm-decode.el
index 1417ecdccc8ed04e40e0f91f267bc64715b1c1a0..5268f192c614679e2d6451a0d399bd8b3b640c35 100644 (file)
--- a/lisp/gnus/mm-decode.el
+++ b/lisp/gnus/mm-decode.el
@@ -117,7 +117,8 @@
   (cond ((fboundp 'libxml-parse-html-region) 'shr)
        ((executable-find "w3m") 'gnus-w3m)
        ((executable-find "links") 'links)
-        ((executable-find "lynx") 'lynx))
+        ((executable-find "lynx") 'lynx)
+        (t 'shr))
   "Render of HTML contents.
 It is one of defined renderer types, or a rendering function.
 The defined renderer types are: