hastd(8) maintains a map of dirty extents, not hastctl(8). Fix this.
hastd(8) maintains a map of dirty extents, not hastctl(8). Fix this.

Approved by:	pjd (mentor)
MFC after:	3 days

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase