Update next.md

Author: sylvestre

next.md

@@ -63,5 +63,6 @@ This file documents the pending improvements or regression:
 * https://github.com/uutils/coreutils/pull/7754
 * https://github.com/uutils/coreutils/pull/7675
 * https://github.com/uutils/coreutils/pull/7839
+* https://github.com/uutils/coreutils/pull/7837