Add a minor mode interface for display-line-numbers

* lisp/cus-start.el: Use the new display-line-numbers group.
* lisp/display-line-numbers.el: New file.

* doc/emacs/custom.texi (Init Rebinding): Re-add entry that used to
belong to linum-mode.
* doc/emacs/modes.texi (Minor Modes): Summarize the mode.
* etc/NEWS: Document display-line-numbers-mode and its customization
variables, and mention that display-line-numbers-width is
buffer-local.

* src/xdisp.c (syms_of_xdisp) <display-line-numbers-width>: Fix a
typo.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/xdisp.c b/src/xdisp.c
index 3e5657ffe6f..422912e57a6 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -32745,7 +32745,7 @@ even if the actual number needs less space.
 The default value of nil means compute the space dynamically.
 Any other value is treated as nil.  */);
   Vdisplay_line_numbers_width = Qnil;
-  DEFSYM (Qdisplay_line_numbers_width, "display-line-number-width");
+  DEFSYM (Qdisplay_line_numbers_width, "display-line-numbers-width");
   Fmake_variable_buffer_local (Qdisplay_line_numbers_width);
 
   DEFVAR_LISP ("display-line-numbers-current-absolute",