Check for bad packets in getaddrinfo.c's getanswer. am: 9ea3f1c8a5 am: 62b2f0523e am: 91b8b9dd71  -s ours am: 2ad4e6e4f6 am: c58d806231 am: ffcf543b9c am: c08dc9cbb3
am: bc9f3827ab

Change-Id: Ib1a2089dd005e2312d46add2da8fd2e38887faa6