printfmtstrings
#define GROUPPRINT printfmtstrings(gr->gr_mem, ":", ",", "%s:%s:%u", \
printfmtstrings(he->h_aliases, " ", " ", "%-16s %s", buf, he->h_name);
printfmtstrings(ne->n_aliases, " ", " ", "%-16s %s", ne->n_name, buf);
#define PROTOCOLSPRINT printfmtstrings(pe->p_aliases, " ", " ", \
#define RPCPRINT printfmtstrings(re->r_aliases, " ", " ", \
#define SERVICESPRINT printfmtstrings(se->s_aliases, " ", " ", \