Be a little more lenient.

Author: behackett

test/test_read_preferences.py

@@ -105,7 +105,7 @@ def test_nearest(self):
  # member
  c = self._get_connection(
  read_preference=ReadPreference.NEAREST,
- secondaryAcceptableLatencyMS=1000,
+ secondaryAcceptableLatencyMS=1500,
  auto_start_request=False)
 
  used = set()