Update xml/issue4058.xml

Co-authored-by: Jonathan Wakely <[email protected]>

Author: tomaszkam

xml/issue4058.xml

@@ -39,7 +39,7 @@ which is SFINAE-friendly,
 There is support for both having `std::to_address` SFINAE friendly,
 and producing hard error early, for iterators that define `iterator_concept`
 as contiguous but fail to satisfy the concept due to not providing `operator->()`.
-LEWG should decide on which direction is preffered.
+LEWG should decide on which direction is prefered.
 </p>
 </discussion>