rb_str_chomp_bang 2783 string.c           rb_str_chomp_bang(argc, argv, str);
rb_str_chomp_bang 2792 string.c           return rb_str_chomp_bang(argc, argv, uscore_get());
rb_str_chomp_bang 2803 string.c           if (NIL_P(rb_str_chomp_bang(argc, argv, dup)))