[range.to.input.overview] Replace 'may' with 'can' in note

Author: jensmaurer

source/ranges.tex

@@ -17108,7 +17108,7 @@
 as an input-only non-common range.
 \begin{note}
 This is useful to avoid overhead
-that may be necessary to provide support for the operations
+that can be necessary to provide support for the operations
 needed for greater iterator strength.
 \end{note}