column 0 is considered to be the start of a defun. If it is
@code{nil}, an open parenthesis in column 0 has no special meaning.
The default is @code{t}. If a string literal happens to have a
-parenthesis in column 0, escape it with backslash to avoid a false
-positive, @xref{Left Margin Paren,, Left Margin Convention, emacs, The
-GNU Emacs Manual}.
+parenthesis in column 0, escape it with a backslash to avoid a false
+positive. @xref{Left Margin Paren,, Left Margin Convention, emacs,
+The GNU Emacs Manual}.
@end defopt
@defvar beginning-of-defun-function