[linux-lvm] Option to silence "WARNING: Sum of all thin volume sizes exceeds the size of thin pool"

[matthew patton]

 > So, any changes to disable the warning at least when taking snapshots?
> https://bugzilla.redhat.com/show_bug.cgi?id=1465974
 
If the warnings are not being emitted to STDERR then that needs to be fixed right off the bat.

'lvs -q blah' should squash any warnings.
'lvcreate' frankly shouldn't output anything unless invoked with '-v' anyway. So therefore '-q' should also squash warnings.

I suspect a wholesale cleanup of the way LVM does logging will suffice to fix the gratuitous and unnecessary output.