Remove error logs from test.

Bionic logs some access denial errors on device,
which are expected

Test: 151-OoenFileLimit
Bug: 148179431

Change-Id: I6f62db27e94fdffc0dc6af17f5146d8550387385
diff --git a/test/151-OpenFileLimit/run b/test/151-OpenFileLimit/run
index 5c83fd0..6faeb0d 100755
--- a/test/151-OpenFileLimit/run
+++ b/test/151-OpenFileLimit/run
@@ -14,8 +14,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# Filter out expected error messages, which happen on device.
+export ANDROID_LOG_TAGS='*:f'
+
 flags="$@"
 
 # Reduce the file descriptor limit so the test will reach the limit sooner.
 ulimit -n 512
-${RUN} ${flags}
+${RUN} --external-log-tags ${flags}