cluster_manager_impl: Move comment to the right place. (#1207)
cluster_manager_impl: Move comment to the right place. (#1207)

The placement of this comment has been bugging me for a while, might as well fix it.

Signed-off-by: Jarno Rajahalme <0f1ab0ac7dffd9db21aa539af2fd4bb04abc3ad4@covalent.io>
envoyproxy/envoy-wasm,eklitzke/envoy,lizan/envoy,istio/envoy,fengli79/envoy,lizan/envoy,jrajahalme/envoy,envoyproxy/envoy,dnoe/envoy,envoyproxy/envoy-wasm,lyft/envoy,lyft/envoy,sebrandon1/envoy,dnoe/envoy,envoyproxy/envoy,fengli79/envoy,envoyproxy/envoy-wasm,fengli79/envoy,jrajahalme/envoy,envoyproxy/envoy-wasm,jrajahalme/envoy,envoyproxy/envoy,eklitzke/envoy,lizan/envoy,jrajahalme/envoy,jrajahalme/envoy,amalgam8/envoy,envoyproxy/envoy-wasm,eklitzke/envoy,istio/envoy,tdmackey/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy,craffert0/envoy,jrajahalme/envoy,amalgam8/envoy,envoyproxy/envoy,envoyproxy/envoy,eklitzke/envoy,lyft/envoy,envoyproxy/envoy-wasm,dnoe/envoy,amalgam8/envoy,tdmackey/envoy,lizan/envoy,sebrandon1/envoy,dnoe/envoy,envoyproxy/envoy,sebrandon1/envoy,rlazarus/envoy,lyft/envoy,istio/envoy,lyft/envoy,envoyproxy/envoy,envoyproxy/envoy,lizan/envoy,envoyproxy/envoy,eklitzke/envoy,sebrandon1/envoy,dnoe/envoy,rlazarus/envoy,fengli79/envoy,sebrandon1/envoy,istio/envoy,craffert0/envoy,istio/envoy,eklitzke/envoy,amalgam8/envoy,rlazarus/envoy,craffert0/envoy,envoyproxy/envoy,rlazarus/envoy,lyft/envoy,craffert0/envoy,envoyproxy/envoy,tdmackey/envoy,lizan/envoy,tdmackey/envoy,istio/envoy,istio/envoy