K 10
svn:author
V 8
jmallett
K 8
svn:date
V 27
2002-05-22T16:09:52.000000Z
K 7
svn:log
V 172
Add a usage().

Print usage() if right before executing the specified command, it comes to be
that *argv is NULL (i.e. a flag was specified without a command being given).

END