stdio/freopen.c: fill __iotab table with stream pointer
stdio/freopen.c: fill __iotab table with stream pointer

  - lets fclose()d and then freopen()ed streams be fclose()d again
    without error



veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi