=item B<--range-check>|B<-r>
Make sure the values in the RRAs do not exceed the limits defined for
-the different datasources.
+the different data sources.
=item B<--force-overwrite>|B<-f>
-Allows B<rrdtool> to overwrite the destination B<RRD>.
+Allows B<RRDtool> to overwrite the destination B<RRD>.
=back