* the current paragraph or, if we're already there, the end of the next
* paragraph. Afterwards, save the quote length, paragraph length, and
* indentation length in *quote, *par, and *indent if they aren't NULL,
- * and refresh the screen if do_refresh is nonzero. Return 0 if we
- * found a paragraph, or 1 if there was an error or we didn't find a
- * paragraph.
+ * and refresh the screen if do_refresh is TRUE. Return 0 if we found a
+ * paragraph, or 1 if there was an error or we didn't find a paragraph.
*
* To explain the searching algorithm, I first need to define some
* phrases about paragraphs and quotation: