resolv.conf parsing: Test adns_af:dampstring

[adns] / regress / case-unkopts.out

adns debug: using nameserver 172.18.45.6
adns: <supplied configuration text>:5: unknown option `wombat'
adns: <supplied configuration text>:6: unknown configuration directive `stoat'
adns: <supplied configuration text>:7: unknown option `zorkmid'
adns: <supplied configuration text>:8: option adns_af has bad value or entry `dampstring' (option must be `any', or list of `ipv4',`ipv6')
adns: <supplied configuration text>:8: unknown option `spong'
chiark.greenend.org.uk flags 0 type 1 A(-) submitted
chiark.greenend.org.uk flags 0 type A(-): OK; nrrs=1; cname=$; owner=$; ttl=3600
 212.13.197.229
rc=0