fixup: harmonize 'be the pack'

Author: jensmaurer

source/ranges.tex

@@ -8623,7 +8623,7 @@
 
 \pnum
 \remarks
-Let \tcode{Is} be the pack $0, 1, \ldots, \tcode{(sizeof...(Views)-1)}$.
+Let \tcode{Is} be the pack \tcode{0, 1, \ldots, \tcode{(sizeof...(Views)-1)}}.
 The exception specification is equivalent to
 \tcode{noexcept(invoke(*\exposid{parent_}->\exposid{fun_}, *std::get<Is>(\exposid{inner_}.\exposid{current_})...))}.
 \end{itemdescr}
@@ -9785,7 +9785,7 @@
 
 \pnum
 \remarks
-Let \tcode{Is} be the pack \tcode{0, 1, ..., (N-1)}.
+Let \tcode{Is} be the pack \tcode{0, 1, \ldots, (N-1)}.
 The exception specification is equivalent to
 \begin{codeblock}
 noexcept(invoke(*@\exposid{parent_}@->@\exposid{fun_}@, *std::get<Is>(@\exposid{inner_}@.@\exposid{current_}@)...))