The code that handled exceptions from the hash equivalence client was
raising an exception itself because hashserv.client wasn't imported
(Bitbake rev: a76290dfc6f34ff9f6efdb13a6db74b6b4759daf)
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>