duh -- on first boot, do not build the host.random file twice; ok djm

src/etc/rc

@@ -1,4 +1,4 @@
-#	$OpenBSD: rc,v 1.292 2006/10/29 18:58:57 norby Exp $
+#	$OpenBSD: rc,v 1.293 2006/11/06 21:55:52 deraadt Exp $
 
 # System startup script run by init on autoboot
 # or after single-user.
@@ -270,12 +270,12 @@ else
 	    > /dev/null 2>&1
 	dd if=/var/db/host.random of=/dev/arandom bs=1024 count=64 \
 	    > /dev/null 2>&1
-fi
 
-# reset seed file, so that if a shutdown-less reboot occurs,
-# the next seed is not a repeat
-dd if=/dev/urandom of=/var/db/host.random bs=1024 count=64 \
-    > /dev/null 2>&1
+	# reset seed file, so that if a shutdown-less reboot occurs,
+	# the next seed is not a repeat
+	dd if=/dev/urandom of=/var/db/host.random bs=1024 count=64 \
+	    > /dev/null 2>&1
+fi
 
 # clean up left-over files
 rm -f /etc/nologin