some testing and also be the most common case for having different
versions and not being able to upgrade.
+--no-blocking-io might be broken
+
+ in the same way as --no-whole-file; somebody needs to check.
+
DAEMON --------------------------------------------------------------
Separate makefile target to run rough tests -- or perhaps just run
them every time?
+Test "refuse options" works
+
+ What about for --recursive?
+
+ If you specify an unrecognized option here, you should get an error.
+
DOCUMENTATION --------------------------------------------------------