more liberal use of whitespace by XSL?

DSSSL stylesheets inserted a NL before each ">", do diff on the
generated XHTML was easy.
XSL stylesheets never insert NL unless it is in the DocBook/XML source
file, which makes diff on generated XHTML all but impossible.
Is there a way to tell XSL to be more liberal with NLs?

-- 
Sam Steingold (http://www.podval.org/~sds) running w2k
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