[range.zip.transform.iterator,range.adjacent.transform.iterator] Insert spaces around - for consistency (#7596)

Author: Andreas-Krug

source/ranges.tex

@@ -11967,7 +11967,7 @@
 
 \pnum
 \remarks
-Let \tcode{Is} be the pack \tcode{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}
@@ -13125,7 +13125,7 @@
 
 \pnum
 \remarks
-Let \tcode{Is} be the pack \tcode{0, 1, \ldots, (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_}@)...))