68689f580b
Part of this file originated in NetBSD, with the original file carrying two versions of 4-clause BSD licenses. r109471 attempted to simplify the situation by putting both licenses together. Meanwhile, NetBSD dropped Clauses 3 and 4 from their own license, and eventually NetBSD got permission from the University of Utah to drop the 3rd clause. Keep the license "simple" by dropping the third clause since both TNF, Utah/Berkeley and phk agree in principle that it can be dropped. Obtained from: NetBSD (ccd.c CVS 1.128, 1.138)