* ensure result is set

compiler/systems/t_msdos.pas

@@ -449,8 +449,7 @@ begin
   BlockWrite(f,maxalloc,2);
   close(f);
   {$pop}
-  if ioresult<>0 then
-    Result:=true;
+  Result:=ioresult=0;
 end;
 
 {****************************************************************************