Update next.md

Author: sylvestre

next.md

@@ -40,3 +40,4 @@ This file documents the pending improvements or regression:
 * https://github.com/uutils/coreutils/pull/7013
 * https://github.com/uutils/coreutils/pull/7032
 * https://github.com/uutils/coreutils/pull/7016
+* https://github.com/uutils/coreutils/pull/7046