ssize_t rdbSaveAuxFieldStrStr(rio *rdb, char *key, char *val) {
    return rdbSaveAuxField(rdb,key,strlen(key),val,strlen(val));
}
ssize_t rdbSaveAuxFieldStrStr(rio *rdb, char *key, char *val) {
    return rdbSaveAuxField(rdb,key,strlen(key),val,strlen(val));
}