The existing documentation for "-d" does not make it obvious whether
its argument is supposed to be a full svn path, a partial svn path,
the glob from the config file, or what. Clarify the text and add an
example to get the reader started.
Reported-by: Nathan Gray <n8gray@n8gray.org> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Eric Wong <normalperson@yhbt.net>