TXT record for source host should say 'source=host', not 'host'

avahi.c

@@ -47,7 +47,7 @@ int avahi_start(char const *service_name,char const *service_type,int const serv
     fprintf(stdout,"%s %s %s %s %s %s %s %s %s %s\n",
 	    "avahi-publish-service", "avahi-publish-service", "--no-fail", host_string, service_name, service_type, port_string, description, pid_string, hostname);
 #endif
-    execlp("avahi-publish-service", "avahi-publish-service", "--no-fail", host_string, service_name, service_type, port_string, description, pid_string, hostname, NULL);
+    execlp("avahi-publish-service", "avahi-publish-service", "--no-fail", host_string, service_name, service_type, port_string, description, pid_string, source_string, NULL);
     perror("exec avahi publish service");
     return -1;
   }