I understand that you'd like diff's here, right? Right in the message? I've made a small change and done a diff, as a test.
Jim 5522a5523 > That amount is determined by the document class. 5529c5530,5532 < space (with stretch and shrink). --- > space, with stretch and shrink > (the default for the @code{book} and > @code{article} classes is @code{12pt plus 4pt minus 4pt}). 5535c5538,5540 < about half of a line space (with stretch and shrink). --- > about half of a line space, with stretch and shrink > (the default for the @code{book} and > @code{article} classes is @code{6pt plus 2pt minus 2pt}). 5541c5546,5548 < quarter of a line space (with stretch and shrink). --- > quarter of a line space, with stretch and shrink > (the default for the @code{book} and > @code{article} classes is @code{3pt plus 1pt minus 1pt}). 5544,5546d5550 < < The @code{\...amount} parameters are determined by the document class. <