Update comment in settings-default.cfg

There are antialiasing techniques that address texture/shading aliasing, but the one we use (MSAA) does not.

files/settings-default.cfg

@@ -204,7 +204,7 @@ minimize on focus loss = true
 # An operating system border is drawn around the OpenMW window.
 window border = true
 
-# Anti-aliasing reduces texture distortion.  (0, 2, 4, 8, 16).
+# Anti-aliasing reduces jagged polygon edges.  (0, 2, 4, 8, 16).
 antialiasing = 0
 
 # Enable vertical syncing to reduce tearing defects.