SF patch #1421726

fixed typo in language reference

Doc/ref/ref6.tex

@@ -875,7 +875,7 @@ a code object.  If it is a string, the string is parsed as a suite of
 Python statements which is then executed (unless a syntax error
 occurs).  If it is an open file, the file is parsed until \EOF{} and
 executed.  If it is a code object, it is simply executed.  In all
-cases, the code that's executed is expected to be be valid as file
+cases, the code that's executed is expected to be valid as file
 input (see section~\ref{file-input}, ``File input'').  Be aware that
 the \keyword{return} and \keyword{yield} statements may not be used
 outside of function definitions even within the context of code passed