Backport r54787 - better error messages in rexec and bastion

Lib/Bastion.py

@@ -97,7 +97,7 @@ def Bastion(object, filter = lambda name: name[:1] != '_',
 
     """
 
-    raise RuntimeError, "This code is not secure in Python 2.2 and 2.3"
+    raise RuntimeError, "This code is not secure in Python 2.2 and later"
 
     # Note: we define *two* ad-hoc functions here, get1 and get2.
     # Both are intended to be called in the same way: get(name).

Lib/rexec.py

@@ -181,7 +181,7 @@ class RExec(ihooks._Verbose):
 
         """
 
-        raise RuntimeError, "This code is not secure in Python 2.2 and 2.3"
+        raise RuntimeError, "This code is not secure in Python 2.2 and later"
 
         ihooks._Verbose.__init__(self, verbose)
         # XXX There's a circular reference here: