+\fB\-c\fR, \fB\-\-complement-output=PREFIX\fR
+Output reads not included in the random sample to a file (or files) with the
+given prefix. By default, these reads are not output.
+.TP
+\fB\-s\fR, \fB\-\-seed\fR
+Seed the random number generator. Using the same seed on the same data set will
+produce the same random sample.
+.TP