package/snmppp: Update site url

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/snmppp/snmppp.mk

@@ -6,7 +6,7 @@
 
 SNMPPP_VERSION = 3.3.4
 SNMPPP_SOURCE = snmp++-$(SNMPPP_VERSION).tar.gz
-SNMPPP_SITE = http://www.agentpp.com
+SNMPPP_SITE = http://www.agentpp.com/download
 SNMPPP_DEPENDENCIES = host-pkgconf
 SNMPPP_INSTALL_STAGING = YES
 # no configure script in tarball