The optional argument Y-LIMIT, if non-nil, specifies the maximum Y
coordinate beyond which the text is to be ignored; it is therefore
-also the maxcomp height that the function can return (excluding the
+also the maximum height that the function can return (excluding the
height of the mode- or header-line, if any). Y-LIMIT nil or omitted
means consider all of the accessible portion of buffer text up to the
position specified by TO. Since calculating the text height of a