• Fix a bug that can lead to displaying an incorrect value. (r224210)
• Fix an abnormal termination caused by twice of "rtadvctl disable". (r224303)
• Use poll() to wait for the control message socket instead of a spin loop. (r224304)
• s/cmsg_/cm_/ to avoid conflict with CMSG_* symbols for struct cmsghdr. (r224619)
• Ignore an interface that never sent RAs for graceful shut-down. (r224620)
• Refine log messages. (r225148)
• Fix SIGSEGV when receiving RAs that contain RDNSS and/or DNSSL options. (r225149)

Approved by: re (kib)