Occasional panicing thread on exit pinging multiple hosts

[MeFri]

Version 1.6.0 sometimes has a panicking thread on exit when pinging multiple hosts:
thread '<unnamed>' panicked at 'Error sending ping result: SendError { .. }', /var/tmp/portage/net-misc/gping-1.6.0/work/cargo_home/gentoo/pinger-0.7.0/src/lib.rs:83:18

[Tom Forbes]

Thank you @MeFri! I've fixed this and I'll release 1.6.1 now