Clarify comment

japhb · japhb · commit fe6f3243e286 · 2022-01-02T18:12:15.000-08:00
diff --git a/lib/Terminal/LineEditor/RawTerminalInput.rakumod b/lib/Terminal/LineEditor/RawTerminalInput.rakumod
@@ -41,7 +41,7 @@ enum ModifierKey (
 );
 
 enum MouseModifier is export (
-    # No support for Alt!
+    # Note: No support for Alt separate from Meta in modifier protocol
     MouseButtonMask =>   3,
     MouseShift      =>   4,
     MouseControl    =>   8,
