Refactoring the output of bisect script. Switching from plain printing to a combination of:

tools/auto_bisect/run_tests

Index: tools/auto_bisect/run_tests
diff --git a/tools/auto_bisect/run_tests b/tools/auto_bisect/run_tests
index f078331514295205328558e3db09d8f7de7a8369..c6f9f355a0ba580dda7c633f4b24a78e454b9c02 100755
--- a/tools/auto_bisect/run_tests
+++ b/tools/auto_bisect/run_tests
@@ -8,11 +8,25 @@
 import os
 import sys
 import unittest
+import logging
 
 SRC = os.path.join(os.path.dirname(__file__), os.path.pardir, os.path.pardir)
 
 
 def main():
+  if 'full-log' in sys.argv:
+    # Configure logging to show line numbers and logging level
+    fmt = '%(module)s:%(lineno)d - %(levelname)s: %(message)s'
+    logging.basicConfig(level=logging.DEBUG, stream=sys.stdout, format=fmt)
+  elif 'no-log' in sys.argv:
+    # Only WARN and above are shown, to standard error. (This is the logging
+    # module default config, hence we do nothing here)
+    pass
+  else:
+    # Behave as before. Make logging.info mimic print behavior
+    fmt = '%(message)s'
+    logging.basicConfig(level=logging.INFO, stream=sys.stdout, format=fmt)
+
   # Running the tests depends on having the below modules in PYTHONPATH.
   sys.path.append(os.path.join(SRC, 'tools', 'telemetry'))
   sys.path.append(os.path.join(SRC, 'third_party', 'pymock'))