Clarify that the 4-clause BSD licenses are only for man pages
diff --git a/COPYING b/COPYING
index c3e05ae..dd472c4 100644
--- a/COPYING
+++ b/COPYING
@@ -1,3 +1,7 @@
+The following 4-clause BSD licenses are only for man pages, specifically
+for man/arc4random.3, man/tree.3 and man/getprogname.3.
+
+
Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
All rights reserved.
@@ -58,7 +62,9 @@
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- --
+
+The rest of the licenses apply to code and/or man pages.
+
Copyright © 2004-2006, 2008-2011 Guillem Jover
Copyright © 2005 Hector Garcia Alvarez