Played contortionist games with the argument_list production so it
might be easier to understand.
This relates to SF bug #493243, which will be closed.
diff --git a/Doc/ref/ref5.tex b/Doc/ref/ref5.tex
index bcd1f26..2a49ebd 100644
--- a/Doc/ref/ref5.tex
+++ b/Doc/ref/ref5.tex
@@ -422,10 +422,10 @@
\production{call}
{\token{primary} "(" [\token{argument_list} [","]] ")"}
\production{argument_list}
- {\token{positional_arguments} ["," \token{keyword_arguments}}
- \productioncont{ ["," "*" \token{expression} ["," "**" \token{expression}]]]}
- \productioncont{| \token{keyword_arguments} ["," "*" \token{expression}}
- \productioncont{ ["," "**" \token{expression}]]}
+ {\token{positional_arguments} ["," \token{keyword_arguments}
+ ["," "*" \token{expression} ["," "**" \token{expression}]]]}
+ \productioncont{| \token{keyword_arguments} ["," "*" \token{expression}
+ ["," "**" \token{expression}]]}
\productioncont{| "*" \token{expression} ["," "**" \token{expression}]}
\productioncont{| "**" \token{expression}}
\production{positional_arguments}