doc: fix snapshot creation/deletion syntax in rbd man page (trivial)

Creating a snapshot requires using "rbd snap create",
as opposed to just "rbd create". Also for purposes of
clarification, add note that removing a snapshot similarly
requires "rbd snap rm".

Thanks to Josh Durgin for the explanation on IRC.

Signed-off-by: Florian Haas <florian@hastexo.com>
Signed-off-by: Josh Durgin <josh.durgin@dreamhost.com>

diff --git a/doc/man/8/rbd.rst b/doc/man/8/rbd.rst
index fbf8e3cf638910364d879d3d95f85f80b83aa4f2..7069e301d96c571888c337c66f67c7d97e0fb68e 100644 (file)
--- a/doc/man/8/rbd.rst
+++ b/doc/man/8/rbd.rst
@@ -154,7 +154,11 @@ To delete an rbd image (be careful!)::
 
 To create a new snapshot::
 
-       rbd create mypool/myimage@mysnap
+       rbd snap create mypool/myimage@mysnap
+
+To delete a snapshot::
+
+       rbd snap rm mypool/myimage@mysnap
 
 To map an image via the kernel with cephx enabled::