fix changlog entry

see Issue 18148

changelog/fix16997.dd

@@ -18,9 +18,8 @@ The values computed will be different for some values of the operands:
 
 * The values of `-byte(-128)` and `-short(-32768)` will change.
 
-If one of the '-transition=' switches is not specified, and warnings are turned on,
-a warning will be emitted for these operations. To turn off the warning and work
-as desired with or without the '-transition=' switch:
+If one of the '-transition=' switches is not specified, a deprecation will be emitted for these operations.
+To fix the deprecation and work as desired with or without the '-transition=' switch:
 
 Option 1:
 
@@ -30,5 +29,4 @@ Option 2:
 
 Rewrite `op b` as `typeof(b)(op int(b))` to preserve the old behavior.
 
-Eventually, the warning will become a deprecation, then an error, and then the C-like behavior
-will become the default.
+Once deprecated this will become an error, and then the C-like behavior will become the default.