(clone-indirect-buffer): Doc fix.

(clone-indirect-buffer): Doc fix.
(fixup-whitespace, just-one-space, backward-delete-char-untabify, lambda):
"?\ " -> "?\s".
(next-error, next-error-highlight, next-error-highlight-no-select,
next-error-last-buffer, next-error-buffer-p, next-error-find-buffer, next-error,
previous-error, next-error-no-select, previous-error-no-select, open-line,
split-line, minibuffer-prompt-width, kill-new, binary-overwrite-mode):
Fix typos in docstrings.
(set-fill-column): Fix typo in message.