odhcp6c: fix appending of emtpy sendopt value (FS#1336)

[openwrt/staging/mkresin.git] / package / network / ipv6 / odhcp6c / files / dhcpv6.sh

diff --git a/package/network/ipv6/odhcp6c/files/dhcpv6.sh b/package/network/ipv6/odhcp6c/files/dhcpv6.sh
index bc7f01d3220a20686ace80304a26e6f6daad11cf..5c2ee6b988ca085337201a97ad8a80a1c9bb38e8 100755 (executable)
--- a/package/network/ipv6/odhcp6c/files/dhcpv6.sh
+++ b/package/network/ipv6/odhcp6c/files/dhcpv6.sh
@@ -77,7 +77,7 @@ proto_dhcpv6_setup() {
 
        sendopts_cb() {
                local val="$1"
-               append opts "-x$val"
+               [ -n "$val" ] && append opts "-x$val"
        }
 
        json_for_each_item sendopts_cb sendopts