Comment 3 for bug 1828707

I have compared the auto-complete file in ubuntu 18.04 package with the one in debian package

and find the difference is only a semicolon

:~/ipset/usr/share/bash-completion/completions# diff ipset /usr/share/bash-completion/completions/ipset
975c975
< eval '_ipset_known_hosts() { '$(declare -f _known_hosts_real | grep -v __ltrim_colon_completions | grep -Ev "^_known_hosts_real.*$" | grep -Ev "^(\{|\})")' }'
---
> eval '_ipset_known_hosts() { '$(declare -f _known_hosts_real | grep -v __ltrim_colon_completions | grep -Ev "^_known_hosts_real.*$" | grep -Ev "^(\{|\})")'; }'

replace the file of debian version works wekk for me.