eba7935f83
`qemu-img info --output=json` returns the size and used values as integers in the JSON format, but the regex match converts them to strings. As we know they only contain digits, we can simply cast them back to integers after the regex. The API requires them to be integers. Signed-off-by: Mira Limbeck <m.limbeck@proxmox.com> Reviewed-by: Fabian Ebner <f.ebner@proxmox.com>