Macros starting with `r' in bsd/netat

• R16 bsd/netat/atp.h:173
• rbufPtr bsd/netat/adsp_internal.h:303
• RT_ALL_ZONES_KNOWN bsd/netat/routing_tables.h:159
• RT_CLR_ZONE_KNOWN bsd/netat/routing_tables.h:161
• RT_DELETE bsd/netat/routing_tables.h:148
• RT_LOOKUP_OKAY bsd/netat/ddp.h:147
• RT_SET_ZONE_KNOWN bsd/netat/routing_tables.h:160