Other Amq options
-----------------

   Three other operations are implemented.  These modify the state of
Amd as a whole, rather than any particular filesystem.  The "-l", "-x"
and "-D" options have exactly the same effect as Amd's corresponding
command line options.  The "-l" option is rejected by Amd in the
current version for obvious security reasons.  When Amd receives a
"-x"flag it limits the log options being modified to those which were
not enabled at startup.  This prevents a user turning *off* any logging
option which was specified at startup, though any which have been
turned off since then can still be turned off.  The "-D" option has a
similar behaviour.