make a proto example work again.

Author: timo

S06-routines.pod

@@ -206,9 +206,9 @@ which would be some dispatcher macro such as:
 
     my proto sub foo (|cap (@args)) {
         do-something-before(@args);
-        my |retcap := MULTI-DISPATCH-CALLWITH(&?ROUTINE, cap);
+        my \retcap = MULTI-DISPATCH-CALLWITH(&?ROUTINE, cap);
         do-something-after(@args);
-        return |retcap;
+        return retcap;
     }
 
 which optimizes (we hope) to an inlined multidispatcher to locate all