Update next.md

Author: sylvestre

next.md

@@ -18,3 +18,4 @@ This file documents the pending improvements or regression:
 * https://github.com/uutils/coreutils/pull/9652
 * https://github.com/uutils/coreutils/pull/9107
 * https://github.com/uutils/coreutils/pull/9607
+* https://github.com/uutils/coreutils/pull/9289