LWG3759 ranges::rotate_copy should use std::move

Author: burblebee

source/algorithms.tex

@@ -6293,7 +6293,7 @@
 \effects
 Equivalent to:
 \begin{codeblock}
-return ranges::rotate_copy(ranges::begin(r), middle, ranges::end(r), result);
+return ranges::rotate_copy(ranges::begin(r), middle, ranges::end(r), std::move(result));
 \end{codeblock}
 \end{itemdescr}