Making all tox tests pass after pep8 fix.

Covers a few unexplained dedents (pep8ify missed them)
and an accidental use of b'.'.

oauth2client/client.py

@@ -708,8 +708,8 @@ class OAuth2Credentials(Credentials):
             token_response=data.get('token_response', None),
             scopes=data.get('scopes', None),
             token_info_uri=data.get('token_info_uri', None))
-    retval.invalid = data['invalid']
-    return retval
+        retval.invalid = data['invalid']
+        return retval
 
     @property
     def access_token_expired(self):

oauth2client/locked_file.py

@@ -136,8 +136,8 @@ class _PosixOpener(_Opener):
                 return
 
         lock_filename = self._posix_lockfile(self._filename)
-    start_time = time.time()
-    while True:
+        start_time = time.time()
+        while True:
             try:
                 self._lock_fd = os.open(lock_filename,
                                         os.O_CREAT | os.O_EXCL | os.O_RDWR)

tests/test_oauth2client.py

@@ -1096,7 +1096,7 @@ class OAuth2WebServerFlowTest(unittest.TestCase):
         try:
             credentials = self.flow.step2_exchange('some random code',
                                                    http=http)
-        self.fail('should raise exception if exchange doesn\'t get 200')
+            self.fail('should raise exception if exchange doesn\'t get 200')
         except FlowExchangeError:
             pass
 
@@ -1273,7 +1273,7 @@ class OAuth2WebServerFlowTest(unittest.TestCase):
         payload = (b'{'
                    b'  "access_token":"SlAV32hkKG",'
                    b'  "refresh_token":"8xLOxBtZp8",'
-                   b'  "id_token": "' + jwt + '"'
+                   b'  "id_token": "' + jwt + b'"'
                    b'}')
         http = HttpMockSequence([({'status': '200'}, payload)])
         credentials = self.flow.step2_exchange('some random code', http=http)