Merge pull request encode#5380 from blueyed/fix-doc

Fix doc for ErrorDetail

Author: Carlton Gibson

rest_framework/exceptions.py

@@ -64,7 +64,7 @@ def _get_full_details(detail):
 
 class ErrorDetail(six.text_type):
  """
- A string-like object that can additionally
+ A string-like object that can additionally have a code.
  """
  code = None