Yapf all the things

tools/run_tests/python_utils/start_port_server.py

@@ -37,7 +37,7 @@ def start_port_server():
     try:
         version = int(
             request.urlopen('http://localhost:%d/version_number' %
-                           _PORT_SERVER_PORT).read())
+                            _PORT_SERVER_PORT).read())
         logging.info('detected port server running version %d', version)
         running = True
     except Exception as e:

tools/run_tests/run_tests.py

@@ -14,8 +14,6 @@
 # limitations under the License.
 """Run tests in parallel."""
 
-
-
 import argparse
 import ast
 import collections