Small changes to base.ReadOnly docstring

ipalib/base.py

@@ -47,8 +47,6 @@ class ReadOnly(object):
     ...     pass
     ...
     >>> p = Person()
-    >>> p.__islocked__()  # Initially unlocked
-    False
     >>> p.name = 'John Doe'
     >>> p.phone = '123-456-7890'
     >>> del p.phone
@@ -56,8 +54,6 @@ class ReadOnly(object):
     But after an instance is locked, you cannot set its attributes:
 
     >>> p.__lock__()  # This will lock the instance
-    >>> p.__islocked__()
-    True
     >>> p.department = 'Engineering'
     Traceback (most recent call last):
       ...
@@ -82,7 +78,7 @@ class ReadOnly(object):
     False
 
     But again, the point is that a programmer would never employ the above
-    techniques as a mere accident.
+    techniques accidentally.
     """
 
     __locked = False