doc: Fixed usage typo.

fixes: #4923

Signed-off-by: John Wilkins <john.wilkins@inktank.com>

diff --git a/doc/dev/mon-bootstrap.rst b/doc/dev/mon-bootstrap.rst
index cef6917c92dd2ed02f8a2c1fb38e1cf317f3c871..9ce0070b791c456a20e67c46ec3a65d85d2aade2 100644 (file)
--- a/doc/dev/mon-bootstrap.rst
+++ b/doc/dev/mon-bootstrap.rst
@@ -37,7 +37,7 @@ Secret keys
 The ``mon.`` secret key is stored a ``keyring`` file in the ``mon data`` directory.  It can be generated
 with a command like::
 
-        ceph-authtool --create /path/to/keyring --gen-key -n mon.
+        ceph-authtool --create-keyring /path/to/keyring --gen-key -n mon.
 
 When creating a new monitor cluster, the keyring should also contain a ``client.admin`` key that can be used
 to administer the system::