If a task such as do_fetch fails when we're extracting source for a
recipe (within devtool modify / upgrade / extract / sync) then we should
naturally stop processing instead of blundering on; in order to do that
we need to be listening for the TaskFailed event. Thanks to Richard
Purdie for noticing and fixing this.
(From OE-Core rev: 9174b845bf6a6be7753bf6b921959b1f3f2dcbc0)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>