DOC: default is copy=True but docstring said False

Author: TomAugspurger

pandas/core/panel.py

@@ -702,7 +702,7 @@ def major_xs(self, key, copy=True):
         ----------
         key : object
             Major axis label
-        copy : boolean, default False
+        copy : boolean, default True
             Copy data
 
         Returns
@@ -720,7 +720,7 @@ def minor_xs(self, key, copy=True):
         ----------
         key : object
             Minor axis label
-        copy : boolean, default False
+        copy : boolean, default True
             Copy data
 
         Returns
@@ -739,6 +739,8 @@ def xs(self, key, axis=1, copy=True):
         key : object
             Label
         axis : {'items', 'major', 'minor}, default 1/'major'
+        copy : boolean, default True
+            Copy data
 
         Returns
         -------