doc: NEWS: improve recent stty details

* src/NEWS: Fix grammar error,
and indicate baud rate probing is opportunistic.

diff --git a/NEWS b/NEWS
index 50f27cd87a886ce0d19e0e0d876f9750d7901714..82594236841be918b490ac379edfedaece50fd38 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -27,7 +27,7 @@ GNU coreutils NEWS                                    -*- outline -*-
   stty supports setting arbitrary baud rates on supported systems,
   like Hurd, Linux with glibc >= 2.42, and some BSDs.
   Also on other systems the full set of supported baud rates
-  are determined at build time.
+  is determined at build time if possible.
 
 
 * Noteworthy changes in release 9.7 (2025-04-09) [stable]