[Koha] File permissions for 'koha-dump' backup files

Hello all, I'm using the package version of 3.16.03 (but I've seen this same behavior in several previous versions as well) and am wondering if there is a way for me to make it so that the .gz files created under /var/spool/koha/<site> are world-readable? Currently they are always owned by 'root' and are not readable by either group or everyone else. I understand it is a potential security issue, but if I'm willing to accept that "risk" is there any way to configure either Koha or the operating system user (i.e. root's 'umask' perhaps) so that these files are created as readable? Thanks! Steve