lisp-fill-paragraph
lisp-fill-paragraph is an interactive compiled Lisp function in `lisp-mode.el
'.
(lisp-fill-paragraph &optional JUSTIFY)
Like M-q, but handle Emacs Lisp comments and docstrings.
If any of the current line is a comment, fill the comment or the
paragraph of it that point is in, preserving the comment's indentation
and initial semicolons.