* doc/coreutils.texi (sort invocation): Mention that numfmt
can achieve the same results with a possibly more accurate sort.
invoked with their @option{--human-readable} or @option{--si} options.
The syntax for numbers is the same as for the @option{--numeric-sort}
option; the SI suffix must immediately follow the number.
+Note also the @command{numfmt} command, which can be used to reformat
+numbers to human format @emph{after} the sort, thus often allowing
+sort to operate on more accurate numbers.
@item -i
@itemx --ignore-nonprinting