(sxml->string sxml) -> string
Serializes a SXML structure into a string.
>> (define sxml (string->sxml "<xyzzy>fooble<fibble jump='fooofoo'>
feefum</fibble></xyzzy>"))
:: (*TOP* (xyzzy "fooble" (...)))
>> (sxml->string sxml)
:: "<?xml version='1.0'?><xyzzy>fooble<fibble jump='fooofoo'>feefum
</fibble></xyzzy>"