+ added header comment with copyright and license info to the WASI system unit

git-svn-id: branches/wasm@48350 -

rtl/wasi/system.pp

@@ -1,3 +1,18 @@
+{
+    This file is part of the Free Pascal run time library.
+    Copyright (c) 2020,2021 by the Free Pascal development team.
+
+    System unit for The WebAssembly System Interface (WASI).
+
+    See the file COPYING.FPC, included in this distribution,
+    for details about the copyright.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+ **********************************************************************}
+
 unit system;
 
 interface