- With natpt_translateFTP6CommandTo4(), move variables   defined with inner block to head of function.
- With natpt_translateFTP6CommandTo4(), move variables
  defined with inner block to head of function.

MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame