Our existing test 024.phpt actually tests incorrect behavior. There is
a self-closing tag present in the input, but the expected output has
that same tag half-open (i.e. open but never closed). To support
tidy-html5, which does the right thing, that test needed to be
changed. The self-closing tag was replaced by an explicit pair of
tags, and some extra whitespace fudging was done.
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