Fix BusinessHour docstring

Si Wei How · Si Wei How · commit dcd8a00b0ad5 · 2019-05-15T13:22:15.000+08:00
diff --git a/pandas/tseries/offsets.py b/pandas/tseries/offsets.py
@@ -872,7 +872,7 @@ 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
     """
