footnote about keyword args

Doc/ref/ref5.tex

@@ -318,7 +318,8 @@ selected).
 \index{call}
 
 A call calls a callable object (e.g. a function) with a possibly empty
-series of arguments:
+series of arguments:\footnote{The new syntax for keyword arguments is
+not yet documented in this manual.  See chapter 12 of the Tutorial.}
 \obindex{callable}
 
 \begin{verbatim}

Doc/ref/ref7.tex

@@ -267,7 +267,9 @@ restriction may be lifted in the future).
 \indexii{function}{definition}
 
 A function definition defines a user-defined function object (see
-section \ref{types}):
+section \ref{types}):\footnote{The new syntax to receive arbitrary
+keyword arguments is not yet documented in this manual.  See chapter
+12 of the Tutorial.}
 \obindex{user-defined function}
 \obindex{function}
 

Doc/ref5.tex

@@ -318,7 +318,8 @@ selected).
 \index{call}
 
 A call calls a callable object (e.g. a function) with a possibly empty
-series of arguments:
+series of arguments:\footnote{The new syntax for keyword arguments is
+not yet documented in this manual.  See chapter 12 of the Tutorial.}
 \obindex{callable}
 
 \begin{verbatim}

Doc/ref7.tex

@@ -267,7 +267,9 @@ restriction may be lifted in the future).
 \indexii{function}{definition}
 
 A function definition defines a user-defined function object (see
-section \ref{types}):
+section \ref{types}):\footnote{The new syntax to receive arbitrary
+keyword arguments is not yet documented in this manual.  See chapter
+12 of the Tutorial.}
 \obindex{user-defined function}
 \obindex{function}