[tuple] Use \dotsc for a non-code ellipsis

Author: lprv

source/utilities.tex

@@ -1927,7 +1927,7 @@
 
 \begin{itemdescr}
 \pnum
-Let \tcode{I} be the pack \tcode{0, 1, ..., (sizeof...(Types) - 1)}.\newline
+Let \tcode{I} be the pack \tcode{0, 1, $\dotsc$, (sizeof...(Types) - 1)}.\newline
 Let \tcode{\exposid{FWD}(u)} be \tcode{static_cast<decltype(u)>(u)}.
 
 \pnum
@@ -2016,7 +2016,7 @@
 
 \begin{itemdescr}
 \pnum
-Let \tcode{I} be the pack \tcode{0, 1, \ldots, (sizeof...(Types) - 1)}.
+Let \tcode{I} be the pack \tcode{0, 1, $\dotsc$, (sizeof...(Types) - 1)}.
 
 \pnum
 \constraints
@@ -2686,7 +2686,7 @@
 \pnum
 \remarks
 Let \tcode{I} be the pack
-\tcode{0, 1, ..., (tuple_size_v<remove_reference_t<Tuple>> - 1)}.
+\tcode{0, 1, $\dotsc$, (tuple_size_v<remove_reference_t<Tuple>> - 1)}.
 The exception specification is equivalent to:
 \begin{codeblock}
 noexcept(invoke(std::forward<F>(f), get<I>(std::forward<Tuple>(t))...))