t0008 hang on streaming test (OS X)

The newest test in t0008 "streaming support for --stdin", seems to hang sporadically on my MacBook Pro (running 10.8.4).  The hang seems to be related to running it in parallel with other tests, as I can only reliably cause it by running with prove  and -j 3.  However, once that has hung I am able to semi-reliably have it occur by running the test separately (with the test hung in the background, using separate trash directories via the --root option).

Experimentation has led me to find that it is hanging when trying to read the 2nd response from check-ignore.

I am somewhat stuck on how to fix it.  Any ideas?

~~ Brian Gernhardt