Regen.

This is a direct commit to stable/10 instead of a MFC of
r271494.

Approved by:	re (gjb)
MFC r271534: MFV r271517:

In zil_claim, don't issue warning if we get EBUSY (inconsistent) when
opening an objset, instead, ignore it silently.

Illumos issue:

    5140 message about "%recv could not be opened" is printed when
         booting after crash

Approved by:	re (gjb)