Fix styling

certutils.py

 # Copyright 2014 Google Inc. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #      http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 112 matching lines @@
   ca_cert.set_serial_number(int(time.time()*10000))
   ca_cert.set_version(2)
   ca_cert.get_subject().CN = subject
   ca_cert.get_subject().O = subject
   ca_cert.gmtime_adj_notBefore(-60 * 60 * 24 * 365 * 2)
   ca_cert.gmtime_adj_notAfter(60 * 60 * 24 * 365 * 2)
   ca_cert.set_issuer(ca_cert.get_subject())
   ca_cert.set_pubkey(key)
   ca_cert.add_extensions([
       crypto.X509Extension('basicConstraints', True, 'CA:TRUE'),
-      crypto.X509Extension('subjectAltName', False, 'DNS:'+subject),
+      crypto.X509Extension('subjectAltName', False, 'DNS:' + subject),
       crypto.X509Extension('nsCertType', True, 'sslCA'),
       crypto.X509Extension('extendedKeyUsage', True,
                            ('serverAuth,clientAuth,emailProtection,'
                             'timeStamping,msCodeInd,msCodeCom,msCTLSign,'
                             'msSGC,msEFS,nsSGC')),
       crypto.X509Extension('keyUsage', False, 'keyCertSign, cRLSign'),
       crypto.X509Extension('subjectKeyIdentifier', False, 'hash',
                            subject=ca_cert),
       ])
   ca_cert.sign(key, 'sha256')
@@ skipping 136 matching lines @@
     cmd = ['certutil', '--empty-password', '-d', 'sql:' + cert_database_path]
     cmd.extend(args)
     logging.info(subprocess.list2cmdline(cmd))
     subprocess.check_call(cmd)
 
   if not os.path.isdir(cert_database_path):
     os.makedirs(cert_database_path)
     certutil(['-N'])
 
   certutil(['-A', '-t', 'PC,,', '-n', certificate_path, '-i', certificate_path])