+.\" Redistribution and use in source and binary forms are permitted
+.\" provided that: (1) source distributions retain this entire copyright
+.\" notice and comment, and (2) distributions including binaries display
+.\" the following acknowledgement: ``This product includes software
+.\" developed by the University of California, Berkeley and its contributors''
+.\" in the documentation or other materials provided with the distribution
+.\" and in all advertising materials mentioning features or use of this
+.\" software. Neither the name of the University nor the names of its
+.\" contributors may be used to endorse or promote products derived
+.\" from this software without specific prior written permission.
+.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.