@cindex human-readable output
Append a size letter to each size, such as @samp{M} for mebibytes.
Powers of 1024 are used, not 1000; @samp{M} stands for 1,048,576 bytes.
-Use the @option{-H} or @option{--si} option if you prefer powers of 1000.
+Use the @option{--si} option if you prefer powers of 1000.
@item -H
-@itemx --si
@opindex -H
-@opindex --si
-@cindex SI output
-Append an SI-style abbreviation to each size, such as @samp{MB} for
-megabytes. Powers of 1000 are used, not 1024; @samp{MB} stands for
-1,000,000 bytes. Use the @option{-h} or @option{--human-readable} option if
-you prefer powers of 1024.
+Currently @option{-H} is the same as @option{--si}.
+This option will be changed to be equivalent to
+@option{--dereference-args} (@option{-D}).
@item -k
@opindex -k
This option enables other programs to parse the output of @command{du}
even when that output would contain file names with embedded newlines.
+@itemx --si
+@opindex --si
+@cindex SI output
+Append an SI-style abbreviation to each size, such as @samp{MB} for
+megabytes. Powers of 1000 are used, not 1024; @samp{MB} stands for
+1,000,000 bytes. Use the @option{-h} or @option{--human-readable} option if
+you prefer powers of 1024.
+
@item -s
@itemx --summarize
@opindex -s