Patch #1042969: add closing brace for \token {generator_expression}. Thanks

George Yoshida!

Doc/ref/ref5.tex

@@ -55,7 +55,7 @@ categorized syntactically as atoms.  The syntax for atoms is:
              {\token{identifier} | \token{literal} | \token{enclosure}}
   \production{enclosure}
              {\token{parenth_form} | \token{list_display}}
-  \productioncont{| \token{generator_expression | \token{dict_display}}}
+  \productioncont{| \token{generator_expression} | \token{dict_display}}
   \productioncont{| \token{string_conversion}}
 \end{productionlist}