rem: int fail = read_utmp (filename, &n_users, &utmp_buf);
context: short_pinky (const char *filename,	     const int argc_names, char *const argv_names[]){  int n_users;  STRUCT_UTMP *utmp_buf;  int fail = read_utmp (filename, &n_users, &utmp_buf);  if (fail)    error (EXIT_FAILURE, errno, "%s", filename);  scan_entries (n_users, utmp_buf, argc_names, argv_names);}