Variable: eldoc-echo-area-display-truncation-message
eldoc-echo-area-display-truncation-message is a customizable variable
defined in eldoc.el.gz.
Value
t
Documentation
If non-nil, provide verbose help when a message has been truncated.
When this is non-nil, and the documentation string was truncated to fit in the echo-area, the documentation will be followed by an explanation of how to display the full documentation text. If nil, truncated messages will just have "..." to indicate truncation.
This variable was added, or its default value changed, in Emacs 28.1.
Probably introduced at or before Emacs version 28.1.
Source Code
;; Defined in /usr/src/emacs/lisp/emacs-lisp/eldoc.el.gz
(defcustom eldoc-echo-area-display-truncation-message t
"If non-nil, provide verbose help when a message has been truncated.
When this is non-nil, and the documentation string was truncated to
fit in the echo-area, the documentation will be followed by an
explanation of how to display the full documentation text.
If nil, truncated messages will just have \"...\" to indicate truncation."
:type 'boolean
:version "28.1")