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

Reviewed by: George Wilson george.wilson@delphix.com
Reviewed by: Christopher Siden christopher.siden@delphix.com
Reviewed by: Max Grossman max.grossman@delphix.com

References:
  https://www.illumos.org/projects/illumos-gate//issues/5140
  https://github.com/illumos/illumos-gate/commit/2243853

Ported by: Turbo Fredriksson <turbo@bayour.com>