[tcpdump-workers] clean exit from tcpdump with asan

--- Begin Message --- i haven't reproduced it myself yet (though i'll try shortly) but we got an automated crash report from tcpdump on Android via [gwp-asan](https://developer.android.com/ndk/guides/gwp-asan). the bug is a use-after-free, specifically when pcap_breakloop() tries to write to the

Re: [tcpdump-workers] [tcpdump] After setjmp/longjmp update

--- Begin Message --- On 24/09/2020 21:51, Denis Ovsienko via tcpdump-workers wrote: > On Sat, 5 Sep 2020 18:20:42 +0200 > Francois-Xavier Le Bail via tcpdump-workers > wrote: > > [...] >> 2) Process all the truncated cases with: >> ndo->ndo_ll_hdr_len = 0; >> longjmp(ndo->ndo_truncated, 1); >>