formatting updates for error msg

Author: zangell44

pandas/core/dtypes/dtypes.py

@@ -895,8 +895,8 @@ def __new__(cls, subtype=None):
  subtype = m.group('subtype')
  else:
  # if no match found, a bad datatype was passed
- msg = ('category, object, and string subtypes are not supported '
- 'for IntervalDtype')
+ msg = ('category, object, and string subtypes are not '
+  'supported for IntervalDtype')
  raise TypeError(msg)
  try:
  subtype = pandas_dtype(subtype)