Fixup: missed line

Author: jensmaurer

source/lex.tex

@@ -1191,7 +1191,8 @@
   the signed integer type \\
                           &
   corresponding to \tcode{std::size_t}\iref{support.types.layout} &
-  corresponding to \tcode{std::size_t} \\\hline
+  corresponding to \tcode{std::size_t} \\
+  & & \tcode{std::size_t} \\\hline
 Both \tcode{u} or \tcode{U}   &
   \tcode{std::size_t}         &
   \tcode{std::size_t}         \\