[expr.sizeof] turn identifier into a grammarterm

Author: eisenwave

source/expressions.tex

@@ -4987,7 +4987,7 @@
 is applied.
 
 \pnum
-The identifier in a \tcode{\keyword{sizeof}...} expression shall name a
+The \grammarterm{identifier} in a \tcode{\keyword{sizeof}...} expression shall name a
 pack. The \tcode{\keyword{sizeof}...} operator yields the number of elements
 in the pack\iref{temp.variadic}.
 A \tcode{\keyword{sizeof}...} expression is a pack expansion\iref{temp.variadic}.