[rand.req.seedseq] Rephrase in terms of const types not values

Author: jwakely

source/numerics.tex

@@ -1571,9 +1571,9 @@
     \tcode{T} is the type named by
     \tcode{S}'s associated \tcode{result_type};
   \item
-    \tcode{q} is a value of \tcode{S}
+    \tcode{q} is a value of type \tcode{S}
     and
-    \tcode{r} is a possibly const value of \tcode{S};
+    \tcode{r} is a value of type \tcode{S} or \tcode{const S};
   \item
     \tcode{ib} and \tcode{ie} are input iterators
     with an unsigned integer \tcode{value_type} of at least 32 bits;
@@ -1584,7 +1584,7 @@
     \tcode{ob} is an output iterator;
   and
   \item
-    \tcode{il} is a value of \tcode{initializer_list<T>}.
+    \tcode{il} is a value of type \tcode{initializer_list<T>}.
 \end{itemize}