Correct some more custom type specs

* lisp/winner.el (winner-boring-buffers-regexp):
* lisp/progmodes/js.el (js-jsx-indent-level):
* lisp/image-dired.el (image-dired-external-viewer):
* lisp/gnus/nnir.el (nnir-notmuch-filter-group-names-function):
Correct custom type specification.

* lisp/textmodes/bibtex.el (bibtex-string-file-path):
(bibtex-file-path): Correct custom type specification and document
source of initial value.

1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/gnus/nnir.el b/lisp/gnus/nnir.el
index 1041373a05f..7cb2d1615a2 100644
--- a/lisp/gnus/nnir.el
+++ b/lisp/gnus/nnir.el
@@ -535,7 +535,7 @@ like so:
    (lambda (g) (replace-regexp-in-string \"\\\\.\" \"/\" g)))"
   :version "27.1"
   :type '(choice function
-                 nil))
+                 (const :tag "No" nil)))
 
 ;;; Developer Extension Variable: