SF bug #775836: change 0,1 to False,True in dict.has_key doc

Doc/lib/libstdtypes.tex

@@ -1125,7 +1125,7 @@ arbitrary objects):
   \lineiii{\var{a}.clear()}{remove all items from \code{a}}{}
   \lineiii{\var{a}.copy()}{a (shallow) copy of \code{a}}{}
   \lineiii{\var{a}.has_key(\var{k})}
-          {\code{1} if \var{a} has a key \var{k}, else \code{0}}
+          {\code{True} if \var{a} has a key \var{k}, else \code{False}}
           {}
   \lineiii{\var{k} \code{in} \var{a}}
           {Equivalent to \var{a}.has_key(\var{k})}