[PATCH 1/2] Add OpenBSD support

[Federico G. Schwindt]

Trivial diff so I can compile varnish unchanged in OpenBSD.

f.-

diff --git a/autogen.sh b/autogen.sh
index 07df626..d7e360d 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -15,6 +15,9 @@ FreeBSD)
 Linux)
     LIBTOOLIZE=libtoolize
     ;;
+OpenBSD)
+    LIBTOOLIZE=libtoolize
+    ;;
 SunOS)
     LIBTOOLIZE=libtoolize
     ;;