Fix tests/run-tests.lhs
Fix tests/run-tests.lhs

The word based failure detection was completely useless,
use a regexp instead.

Signed-off-by: Joachim Fasting <joachim.fasting@gmail.com>

Signed-off-by: Ben Sinclair <fb4a9eda4dc9958876c50108c070f6fd29c0fb74@gmail.com>
beni55/libmpd-haskell,sol/libmpd-haskell