linux-cm: Avoid unterminated string
linux-cm: Avoid unterminated string

If the wireless card's name is exactly IFNAMSIZ bytes long (without the
terminating NUL), then iwr.ifr_name will lack the terminating NUL
character. Only copy IFNAMSIZ - 1 bytes so we can be sure that the last
character will terminate the string properly.

GNOME/gupnp,GNOME/gupnp,GNOME/gupnp,GNOME/gupnp