Merge from origin/emacs-29

ecb80e0e8aa ; Improve wording in documentation of 'not and 'null'
5971aa1fd32 * lisp/dnd.el (dnd-handle-movement): Avoid errors (bug#70...
bbc5204a0f3 * doc/misc/calc.texi: Improve indexing.

diff --cc doc/lispref/control.texi
Simple merge

diff --cc doc/lispref/lists.texi
Simple merge

diff --cc doc/misc/calc.texi
Simple merge

diff --cc lisp/dnd.el
Simple merge