interfaces passed to rtadvd
-Comment out example sentences more completely
-Redirect error message of ifconfig output into /dev/null, to correctly
find out working IPv6 interfaces
Approved by: jkh
Initial version created by, and kindly much tested by:
bmah@CA.Sandia.GOV (Bruce A. Mah)
Approved by: jkh
Reviewed by: bmah@CA.Sandia.GOV (Bruce A. Mah),
Ollivier Robert <roberto@keltia.freenix.fr>
Obtained from: KAME project