* lisp/custom.el (defcustom): Remove empty doc string.

It is no longer needed because (lambda () "hello") has no doc string.

(cherry picked from commit b7f2d994c693f1dcd23c38aeeab8b178cb850174)

diff --git a/lisp/custom.el b/lisp/custom.el
index 048e4a55c72baf9f5365611a28a2d48a4f248dbe..40bde43caf71926786c44fca769ff7cfaddbaad5 100644 (file)
--- a/lisp/custom.el
+++ b/lisp/custom.el
@@ -400,7 +400,7 @@ for more information."
          ;; expression is checked by the byte-compiler, and that
          ;; lexical-binding is obeyed, so quote the expression with
          ;; `lambda' rather than with `quote'.
-         ``(funcall #',(lambda () "" ,standard))
+         ``(funcall #',(lambda () ,standard))
        `',standard)
     ,doc
     ,@args))