handle compiler crash better: need to use exec to avoid seeing shell output about the crash.
handle compiler crash better:
need to use exec to avoid seeing
shell output about the crash.

R=iant
DELTA=2  (1 added, 0 deleted, 1 changed)
OCL=35542
CL=35560
abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go