Fix wording and punctuation of a recent commit

* lisp/textmodes/ispell.el (ispell-correct-p): Doc fix.
* lisp/emacs-lisp/checkdoc.el (checkdoc-ispell-init): Fix
capitalization and punctuation of comments.
1 job for emacs-27 in 68 minutes and 38 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
passed #4797
test-all

01:08:38