Fix BusinessHour docstring

Si Wei How · Si Wei How · commit 93e519d5e2ee · 2019-05-15T14:35:13.000+08:00
diff --git a/pandas/tseries/offsets.py b/pandas/tseries/offsets.py
@@ -804,7 +804,7 @@ def _repr_attrs(self):
 
 class BusinessHour(BusinessHourMixin, SingleConstructorOffset):
     """
-    DateOffset subclass representing possibly n business days.
+    DateOffset subclass representing possibly n business hours.
 
     .. versionadded:: 0.16.1
     """
