Filter out log lines when parsing output of --gtest_list_tests.

mojo/tools/gtest.py

Index: mojo/tools/gtest.py
diff --git a/mojo/tools/gtest.py b/mojo/tools/gtest.py
index a731115ae5e777424932a1f33d793b94289ae654..c03b62f49cc4b922022761bc756c35dc3ca45d1e 100644
--- a/mojo/tools/gtest.py
+++ b/mojo/tools/gtest.py
@@ -87,6 +87,10 @@ def _gtest_list_tests(gtest_list_tests_output):
   """Returns a list of strings formatted as TestSuite.TestFixture from the
   output of running --gtest_list_tests on a GTEST application."""
 
+  # Remove log lines.
+  gtest_list_tests_output = (
+      re.sub("^\[.*\n", "", gtest_list_tests_output, flags=re.MULTILINE))
+
   if not re.match("^(\w*\.\r?\n(  \w*\r?\n)+)+", gtest_list_tests_output):
     raise Exception("Unrecognized --gtest_list_tests output:\n%s" %
                     gtest_list_tests_output)