Fix sed command syntax for smartdns.conf

Author: FusionPlmH

host.sh

@@ -167,7 +167,7 @@ done
 sed -i -e '14,$s/^/||&/' -e '14,$s/$/&^/' adblocker
 sed -i -e '14,$s/^/0.0.0.0  &/' host
 sed -i -e '14,$s/^/address=\//' -e '14,$s/$/\/0.0.0.0/' dnsmasq.conf
-sed -i -e '14,$s/^/address \/' -e '14,$s/$/\/#/' smartdns.conf
+sed -i -e '14,$s/^/address \//' -e '14,$s/$/\/#/' smartdns.conf
 sed -i -e '14i payload:' -e "14,\$s/^/  - '/" -e "14,\$s/$/'/" clash
 
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