Steven Hartland fce5da5f71 Prevent zpool upgrade failing due to unavailable pools
Prior to this fix "zpool upgrade" and "zpool upgrade -a" would fail due to
an assert when operating on unavailable pools.

We now print a warning to stderr but allow the processing of other pools
to procesed.

MFC after:	1 month
2014-12-25 02:17:17 +00:00
..
2014-12-08 04:35:34 +00:00
2014-07-01 06:43:15 +00:00
2014-07-01 06:43:15 +00:00