Change who's expanding tabs.

config.def.h

@@ -74,7 +74,7 @@ static char termname[] = "st-256color";
  *
  *	it#$tabspaces,
  *
- * Secondly make sure your terminal is not expanding tabs. When running `stty
+ * Secondly make sure your kernel is not expanding tabs. When running `stty
  * -a` »tab0« should appear. You can tell the terminal to not expand tabs by
  *  running following command:
  *