wireshark: security bump to version 1.8.8

Fixes wnpa-sec-2013-32, wnpa-sec-2013-33, wnpa-sec-2013-34,
wnpa-sec-2013-35, wnpa-sec-2013-36, wnpa-sec-2013-37, wnpa-sec-2013-38,
wnpa-sec-2013-39, wnpa-sec-2013-40 and wnpa-sec-2013-41.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>