Fixed tiny error caught by linter

Author: axel-d-one

pandas/core/strings.py

@@ -52,7 +52,7 @@ def _get_array_list(arr, others, align=True):
  arr, others = arr.align(others, join='left')
  arrays = [list(arr), list(others)]
  elif len(others) and isinstance(com._values_from_object(others)[0],
- (list, np.ndarray, Series)):
+  (list, np.ndarray, Series)):
  arrays = [arr] + list(others)
  else:
  arrays = [arr, others]
@@ -78,6 +78,11 @@ def str_cat(arr, others=None, sep=None, na_rep=None, align=None):
  If None, concatenates without any separator.
  na_rep : string or None, default None
  If None, NA in the series are ignored.
+ align : bool or None, default None
+ If used between two Series, determines whether they are aligned
+ before concatenation. Currently, None is interpreted as False
+ but raises a UserWarning. In a future version of pandas, this
+ default of align will change to True.
 
  Returns
  -------