[ranges.zip] Use 'auto' instead of decay-copy

Author: jensmaurer

source/ranges.tex

@@ -7639,7 +7639,7 @@
 the expression \tcode{views::zip(Es...)} is expression-equivalent to
 \begin{itemize}
 \item
-\tcode{\exposid{decay-copy}(views::empty<tuple<>>)}
+\tcode{auto(views::empty<tuple<>>)}
 if \tcode{Es} is an empty pack,
 \item
 otherwise, \tcode{zip_view<views::all_t<decltype((Es))>...>(Es...)}.
@@ -8370,7 +8370,7 @@
 Otherwise, the expression \tcode{views::zip_transform(F, Es...)}
 is expression-equivalent to
 \begin{codeblock}
-((void)F, decay-copy(views::empty<decay_t<invoke_result_t<FD&>>>))
+((void)F, auto(views::empty<decay_t<invoke_result_t<FD&>>>))
 \end{codeblock}
 \end{itemize}
 \item
@@ -8908,7 +8908,7 @@
 the expression \tcode{views::adjacent<N>(E)} is expression-equivalent to
 \begin{itemize}
 \item
-\tcode{((void)E, \exposid{decay-copy}(views::empty<tuple<>>))}
+\tcode{((void)E, auto(views::empty<tuple<>>))}
 if \tcode{N} is equal to \tcode{0},
 \item
 otherwise, \tcode{adjacent_view<views::all_t<decltype((E))>, N>(E)}.