<STARTDOC>
macro(abstract(text))
(Defines an abstract for an tt(article) or tt(report) document. Abstracts are
not implemented for tt(book)s or tt(manpage)s. Must appear bf(before)
starting the document with the tt(article) or tt(report) macro.)
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DEFINEMACRO(abstract)(1)(\
    SETSYMBOL(XXabstracttext)(ARG1)\
)

