Comment 1 for bug 986847

The attached branch doesn't exactly fix this, because just adding the -n would've meant a bunch of useless clutter to people not using NFS, but instead lets you work around it by doing something like this:

$ CMD_IOSTAT="iostat -n" pt-stalk ...

Which will make pt-stalk use 'iostat -n -dx ...'. You can actually replace most commands used by pt-stalk with this, so in conjunction with the new --plugin interface, it should let you do most things in whichever way you want.

I think this is the way to go, and will be merging it soon (with docs) unless someone objects / thinks it's a brain-damaged idea / etc.