Before we didn't detect it properly. Since Oracle Linux is diet centos,
we can just make the centos logic detect Oracle linux and everything
should be fine.
Signed-off-by: Christine Dodrill <xe@tailscale.com>
The script detects one of the supported OS/version combos, and issues
the right install instructions for it.
Co-authored-by: Christine Dodrill <xe@tailscale.com>
Signed-off-by: David Anderson <danderson@tailscale.com>
