The musl implementation of getaddrinfo and getservbyname does not
aliases. As a workaround we use "sunprc" instead of "portmapper"

diff --git a/src/rpcbind.c b/src/rpcbind.c
index 83dbe93..9404df7 100644
--- a/src/rpcbind.c
+++ b/src/rpcbind.c
@@ -416,7 +416,7 @@ init_transport(struct netconfig *nconf)
 			if ((aicode = getaddrinfo(hosts[nhostsbak],
 			    servname, &hints, &res)) != 0) {
 			  if ((aicode = getaddrinfo(hosts[nhostsbak],
-						    "portmapper", &hints, &res)) != 0) {
+						    "sunrpc", &hints, &res)) != 0) {
 				syslog(LOG_ERR,
 				    "cannot get local address for %s: %s",
 				    nconf->nc_netid, gai_strerror(aicode));
@@ -489,7 +489,7 @@ init_transport(struct netconfig *nconf)
 		if ((strcmp(nconf->nc_netid, "local") != 0) &&
 		    (strcmp(nconf->nc_netid, "unix") != 0)) {
 			if ((aicode = getaddrinfo(NULL, servname, &hints, &res))!= 0) {
-			  if ((aicode = getaddrinfo(NULL, "portmapper", &hints, &res))!= 0) {
+			  if ((aicode = getaddrinfo(NULL, "sunrpc", &hints, &res))!= 0) {
 			  printf("cannot get local address for %s: %s",  nconf->nc_netid, gai_strerror(aicode));
 			  syslog(LOG_ERR,
 				    "cannot get local address for %s: %s",