Remove extra ',' chars which makes conflist examples invalid.
Remove extra ',' chars which makes conflist examples invalid.

Signed-off-by: Gergo Huszty <8c0aeeeac19af57d171e0818d435f2b3a9bb7421@ibm.com>

containernetworking/cni,containernetworking/cni,appc/cni,appc/cni