repodata_set_poolstrn
repodata_set_poolstrn(data, handle, DELTA_LOCATION_DIR, dir, l);
repodata_set_poolstrn(data, handle, DELTA_LOCATION_NAME, file, evr ? evr - file : strlen(file));
repodata_set_poolstrn(data, handle, DELTA_LOCATION_EVR, evr + 1, suf ? suf - evr - 1: strlen(evr + 1));