Variable: time-stamp-conversion-warn
time-stamp-conversion-warn is a variable defined in time-stamp.el.gz.
Value
t
Documentation
Enable warnings about soon-to-be-unsupported forms in time-stamp-format.
If nil, these warnings are disabled, which would be a bad idea! You really need to update your files instead.
The new formats will work with old versions of Emacs.
New formats are being recommended now to allow time-stamp-format
to change in the future to be compatible with format-time-string.
The new forms being recommended now will continue to work then.
Source Code
;; Defined in /usr/src/emacs/lisp/time-stamp.el.gz
(defvar time-stamp-conversion-warn t
"Enable warnings about soon-to-be-unsupported forms in `time-stamp-format'.
If nil, these warnings are disabled, which would be a bad idea!
You really need to update your files instead.
The new formats will work with old versions of Emacs.
New formats are being recommended now to allow `time-stamp-format'
to change in the future to be compatible with `format-time-string'.
The new forms being recommended now will continue to work then.")