fix linting errors
fix linting errors

Signed-off-by: Serguei Bezverkhi <c33ca6227aebfb54a1e138877913c69b58e15edc@cisco.com>

a16/gobgp,fujita/gobgp,osrg/gobgp,osrg/gobgp,fujita/gobgp,j-kato/gobgp,a16/gobgp,fujita/gobgp,a16/gobgp,a16/gobgp,fujita/gobgp,osrg/gobgp,j-kato/gobgp,a16/gobgp,j-kato/gobgp,osrg/gobgp,a16/gobgp,a16/gobgp