ESSIDs can technically include NULL characters.  Drivers should not be
adjusting the length of the ESSID before reporting it in their
SIOCGIWESSID handlers.  Breaks stuff like wpa_supplicant.  Note that ipw
drivers, which seem to currently be the "most correct", don't have this
problem.
Signed-off-by: NDan Williams <dcbw@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>