shf_close
shf_close(x.u.shf);
shf_close(shf);
if (shf_close(shf) == EOF) {
if (shf_close(shf) == EOF) {
shf_close(shf);
shf_close(shf);
shf_close(kshdebug_shf);
shf_close(shf);
shf_close(shf);
int shf_close(struct shf *);