GitLab

* doc/emacs/search.texi (Special Isearch): Document C-x 8 RET in isearch.
(Word Search): Document incremental word search changes.
(Isearch Yank): Document M-s C-e with a prefix argument.

* doc/lispref/files.texi (Changing Files): Document copy-file changes.

* lisp/isearch.el (isearch-yank-char, isearch-yank-word)
(isearch-yank-line): Doc fix.