rcs_set_description
rcs_set_description(pb.file, pb.description, pb.flags) == -1)
rcs_set_description(pb->file, NULL, pb->flags) == -1) {
if (rcs_set_description(file, descfile, rcsflags) == -1) {
if (rcs_set_description(file, NULL, rcsflags) == -1) {
int rcs_set_description(RCSFILE *, const char *, int);