runsuite return 0 when tests fail

_From [timurrrr@google.com](https://code.google.com/u/timurrrr@google.com/) on February 01, 2011 21:37:42_

http://build.chromium.org/p/client.drmemory/builders/win-xp-drm/builds/820/steps/Build%20and%20test%20Dr.%20Memory/logs/stdio ==================================================
RESULTS

drmemory-dbg-32: 5 tests passed, ***\* 15 tests failed: ****
free
registers
malloc
cs2bug => stderr failed to match :::Dr.Memory::: 1 unique, 1 total uninitialized
access(es)?, found :::Dr.Memory::: 5 unique, 5 total uninitialized
access(es) instead
patterns => stderr failed to match :::Dr.Memory::: 0 unique, 0 total unaddressable
access(es)?, found :::Dr.Memory::: 1 unique, 1 total unaddressable
access(es) instead
float
leaks-only
suppress => stderr failed to match :::Dr.Memory::: 0 unique, 0 total unaddressable
access(es)?, found :::Dr.Memory::: 6 unique, 6 total unaddressable
access(es) instead
suppress-gensyms
suppress-genoffs
wincrt
wincrtdbg => stderr failed to match :::Dr.Memory::: 7 unique, 7 total unaddressable
access(es)?, found :::Dr.Memory::: 4 unique, 4 total unaddressable
access(es) instead
malloccrt => stderr failed to match :::Dr.Memory::: 1 unique, 20 total unaddressable
access(es)?, found :::Dr.Memory::: 1 unique, 1 total unaddressable
access(es) instead
nudge => stderr failed to match :::Dr.Memory::: 2 unique, 21 total, 3259 byte(s)
of leak(s)?, found :::Dr.Memory::: 4 unique, 23 total, 3919 byte(s) of
leak(s) instead
realloc => (1452). Internal Error Internal DynamoRIO Error:
drmemory-rel-32: build successful; no tests for this build
final package: build successful; no tests for this build

program finished with exit code 0

_Original issue: http://code.google.com/p/drmemory/issues/detail?id=284_