[range.repeat.view] Fix typo (#5765)

Author: hewillk

source/ranges.tex

@@ -3408,7 +3408,7 @@
               (@\exposid{is-integer-like}@<Bound> || @\libconcept{same_as}@<Bound, unreachable_sentinel_t>))
   class @\libglobal{repeat_view}@ : public view_interface<repeat_view<W, Bound>> {
   private:
-    // \ref{range.repeat.iterator}, class \tcode{range_view::\exposid{iterator}}
+    // \ref{range.repeat.iterator}, class \tcode{repeat_view::\exposid{iterator}}
     struct @\exposid{iterator}@;    // \expos
 
     @\exposid{movable-box}@<W> @\exposid{value_}@ = W();    // \expos, see \ref{range.move.wrap}