message; it will be truncated instead, as it was done in 20.x.
Default value is nil.
++++
** The user option `line-number-display-limit' can now be set to nil,
meaning no limit.
++++
+** The new user option `line-number-display-limit-width' controls
+the maximum width of lines in a buffer for which Emacs displays line
+numbers in the mode line. The default is 200.
+
** `select-safe-coding-system' now also checks the most preferred
coding-system if buffer-file-coding-system is `undecided' and
DEFAULT-CODING-SYSTEM is not specified,