Thanks, miles170 for reporting
if [[ -r ~/.ssh/known_hosts ]] ; then
_ssh_hosts=(${${${${(f)"$(<$HOME/.ssh/known_hosts)"}:#[\|]*}%%\ *}%%,*})
if [[ -r ~/.ssh/known_hosts ]] ; then
_ssh_hosts=(${${${${(f)"$(<$HOME/.ssh/known_hosts)"}:#[\|]*}%%\ *}%%,*})
if [[ -r /etc/hosts ]] && [[ "$NOETCHOSTS" -eq 0 ]] ; then
: ${(A)_etc_hosts:=${(s: :)${(ps:\t:)${${(f)~~"$(grep -v '^0\.0\.0\.0\|^127\.0\.0\.1\|^::1 ' /etc/hosts)"}%%\#*}##[:blank:]#[^[:blank:]]#}}}
if [[ -r /etc/hosts ]] && [[ "$NOETCHOSTS" -eq 0 ]] ; then
: ${(A)_etc_hosts:=${(s: :)${(ps:\t:)${${(f)~~"$(grep -v '^0\.0\.0\.0\|^127\.0\.0\.1\|^::1 ' /etc/hosts)"}%%\#*}##[:blank:]#[^[:blank:]]#}}}