Replace (int, long) with six.integer_types

Python 3 hasn't type 'long', there is only integer type 'int',
which mostly behaves like the long type in Python 2.

Partially-Implements: bp py3-compatibility

Change-Id: I78eb93837cbe137c9ce4dd1b3cf0f4744696ade4

manila/quota.py

@@ -431,7 +431,7 @@ class DbQuotaDriver(object):
         # Set up the reservation expiration
         if expire is None:
             expire = CONF.reservation_expire
-        if isinstance(expire, (int, long)):
+        if isinstance(expire, six.integer_types):
             expire = datetime.timedelta(seconds=expire)
         if isinstance(expire, datetime.timedelta):
             expire = timeutils.utcnow() + expire

manila/share/drivers/netapp/dataontap/client/api.py

@@ -473,7 +473,9 @@ class NaElement(object):
                     child = NaElement(key)
                     child.add_child_elem(value)
                     self.add_child_elem(child)
-                elif isinstance(value, (str, int, float, long)):
+                elif isinstance(
+                        value,
+                        six.string_types + six.integer_types + (float, )):
                     self.add_new_child(key, six.text_type(value))
                 elif isinstance(value, (list, tuple, dict)):
                     child = NaElement(key)