Macros starting with `r' in bsd/netccitt

• RESHUFFLELCN bsd/netccitt/pk_subr.c:568
• RESTART_DTE_ORIGINATED bsd/netccitt/pk_input.c:356
• ROUNDUP bsd/netccitt/if_x25subr.c:748
• RT bsd/netccitt/if_x25subr.c:261