Make script with chattr -i executable without sudo

I am on Linux Mint 20 with Cinnamon 4.6.7. I would like a non admin user reg to be able to make /etc/resolv.conf mutable without using sudo. So I made this script at /home/reg/make-resolv-conf-mutable.sh: #!/bin/bash sudo chattr -i /etc/resolv.conf I made it executable and am trying to remove sudo password requirement with sudo visudo, but it still requires the password even after I have added these lines at bottom of /etc/sudoers and new file /etc/sudoers.d/resolv-conf-rules reg ALL=NOPASSWD: /home/reg/make-resolv-conf-mutable.sh reg ALL=(ALL:ALL) NOPASSWD: /home/reg/make-resolv-conf-mutable.sh I ran sudo visudo -c and all the files said "parsed OK" including /etc/sudoers and /etc/sudoers.d/resolv-conf-rules.