Fixup: overfull hbox

Author: jensmaurer

source/ranges.tex

@@ -116,7 +116,8 @@
     using safe_iterator_t = conditional_t<@\placeholder{forwarding-range}@<R>, iterator_t<R>, dangling>;
 
   template<Range R>
-    using safe_subrange_t = conditional_t<@\placeholder{forwarding-range}@<R>, subrange<iterator_t<R>>, dangling>;
+    using safe_subrange_t =
+      conditional_t<@\placeholder{forwarding-range}@<R>, subrange<iterator_t<R>>, dangling>;
 
   // \ref{range.empty}, empty view
   template<class T>