Update the test for failed zone transfers to reflect BIND 9.3.1 semantics Simplify the shell scripting a bit, and remove a useless grep | sed
Update the test for failed zone transfers to reflect BIND 9.3.1 semantics
Simplify the shell scripting a bit, and remove a useless grep | sed

The problem was pointed out by the PR, and I used part of the solution
suggested there, but the semantics changed again for 9.2.x -> 9.3.x.

PR:		conf/74228
Submitted by:	Jeremy Chadwick <freebsd@jdc.parodius.com>

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