Defines starting with `r' in bsd/netinet

• RAND_TICKS bsd/netinet/in_bootp.c:393
• REDUCE bsd/netinet/in_cksum.c:113
• RFC_OPTIONS_MAGIC bsd/netinet/in_bootp.c:86
• RIPRCVQ bsd/netinet/raw_ip.c:107
• RIPSNDQ bsd/netinet/raw_ip.c:106
• RTE_FOUND bsd/netinet/ip_mroute.c:215
• rt_expire bsd/netinet/if_ether.c:106
• RTF_ANNOUNCE bsd/netinet/if_ether.h:162
• RTF_USETRAILERS bsd/netinet/if_ether.h:161
• RTPRF_OURS bsd/netinet/in_rmx.c:80
• RTQ_TIMEOUT bsd/netinet/in_rmx.c:286