for unprivileged users (and possibly some root setups). reading from
pmxcfs now results in a hard error for unprivileged users, so there
might be some more of these lurking somewhere..
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
after upgrading to bullseye, the cfs_read_file call within
restore_update_config_line() results in an error:
Is a directory!
when done as an unprivileged user.
Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
