+ * A program for writing output to devices which don't like constant
+ * stopping and starting, such as tape drives. writebuffer is:
+ * Copyright (C) 1997-1998,2000-2001 Ian Jackson <ian@chiark.greenend.org.uk>
+ *
+ * writebuffer is part of chiark backup, a system for backing up GNU/Linux
+ * and other UN*X-compatible machines, as used on chiark.greenend.org.uk.
+ * chiark backup is:
+ * Copyright (C) 1997-1998,2000-2001 Ian Jackson <ian@chiark.greenend.org.uk>
+ * Copyright (C) 1999 Peter Maydell <pmaydell@chiark.greenend.org.uk>