in the description of `moused_flags', instead of the later), and
add a description of `moused_XXX_flags' where `XXX' is the port
name of a non-default moused invocation -- including an example
of using "-3" with the default moused(8) instance, but no special
flags for moused(8) invocations handling 3-button USB mice (which
seems a very common scenario these days).
MFC after: 3 days
f3a1812e1e