net-snmp: do not exit if files cannot be opened

If snmpd fails to open files, like /dev/kmem or /dev/mem, it exits.
Avoid this by adding the -r argument.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

net/net-snmp/files/snmpd.init

@@ -317,7 +317,7 @@ start_service() {
 	append_parm v1trapaddress host v1trapaddress
 	append_parm trapsess trapsess trapsess
 
-	procd_set_param command $PROG -Lf /dev/null -f
+	procd_set_param command $PROG -Lf /dev/null -f -r
 	procd_set_param file $CONFIGFILE
 	procd_set_param respawn