gpsfake: Avoid duplicated output after daemon death.

Although the client read() method provides a return value to indicate
that daemon output has become unavailable (due to its death), the
run() method in fake.py was ignoring it, and just repeatedly outputting
the old string until it eventually noticed the death.  It now pays
attention to the failure return.

TESTED:
All tests pass.  Quitting the daemon while stopped at a breakpoint no
longer spews duplicated output for a while.

0 files changed, 0 insertions, 0 deletions