[E] Error: rsync: [sender] opendir "/etc/cups/ssl" failed: Permission denied (13)

[slrslr]

Hello,

in the backup log of the 1.3.1 i see

[E] Error: rsync: [sender] opendir "/etc/cups/ssl" failed: Permission denied (13)

stat /etc/cups/ssl
  File: /etc/cups/ssl
  Size: 4096      	Blocks: 8          IO Block: 4096   directory
Device: 254,0	Inode: 1312035     Links: 2
Access: (0700/drwx------)  Uid: (    0/    root)   Gid: (  209/    cups)

How would You solve these errors if i want to backup also protected files like those in /etc ? This is Arch Linux

I read that someone add line like: myusername ALL=(ALL) NOPASSWD:/usr/bin/rsync inside "sudo visudo"