doc: mention logname improvement in NEWS

* NEWS: Mention the improvement in gnulib commit 90840606.
Addresses https://bugs.gnu.org/76876

diff --git a/NEWS b/NEWS
index e7bc3884cbc2993dceb8a687c9833376a9d3cfdf..8d82bc3525e37f024cc6cda93dc5e8780722fd93 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -18,6 +18,12 @@ GNU coreutils NEWS                                    -*- outline -*-
   entries prefixed with the service (like "sshd") were not matched.
   [bug introduced in coreutils-9.4]
 
+** Improvements
+
+  'logname' correctly returns the user who logged in the session,
+  on more systems.  Previously on musl or uclibc it would have merely
+  output the LOGNAME environment variable.
+
 
 * Noteworthy changes in release 9.6 (2025-01-17) [stable]