[range.drop.overview] Use \exposidnc for decay-copy

Author: frederick-vs-ja

source/ranges.tex

@@ -6374,7 +6374,7 @@
 \item
 If \tcode{T} is a specialization of
 \tcode{empty_view}\iref{range.empty.view},
-then \tcode{((void)F, \placeholdernc{decay-copy}(E))},
+then \tcode{((void)F, \exposidnc{decay-copy}(E))},
 except that the evaluations of \tcode{E} and \tcode{F}
 are indeterminately sequenced.
 
@@ -6417,7 +6417,7 @@
 \end{codeblock}
 except that \tcode{E} is evaluated only once;
 \item
-otherwise, \tcode{((void)F, \placeholdernc{decay-copy}(E))},
+otherwise, \tcode{((void)F, \exposidnc{decay-copy}(E))},
 except that the evaluations of \tcode{E} and \tcode{F} are indeterminately sequenced.
 \end{itemize}