Last call for input to mdadm-3.2.4

Hi all,
 I hope to release mdadm-3.2.4 next week.

This is mostly a bugfix release though there are a few small features
like "--prefer=" which guides the selection of the device names reported by
--detail and --monitor.
It also now defaults /run/mdadm for runtime files rather than /dev/.mdadm or
/var/run/mdadm.

I hope it will be just what I currently have in the 'master' branch of my git
tree, plus changes to the version numbers.  However if anyone has anything
that they really want to go in *now* I'm open to contributions if they are
important.

I'll then try to focus more on preparing for 3.3 which will include:
 - badblock log support
 - hot-replace support
 - raid10 reshape

and maybe other stuff.

NeilBrown