logging: do not call the broken 0-arg constructor for spdlog::details::log_msg (#4962)
logging: do not call the broken 0-arg constructor for spdlog::details::log_msg (#4962)

Signed-off-by: Joshua Marantz <c3f6b7d9de5243f9f0884ee043fd42ff9df5f177@google.com>

dnoe/envoy,jrajahalme/envoy,envoyproxy/envoy,istio/envoy,lyft/envoy,dnoe/envoy,envoyproxy/envoy-wasm,lizan/envoy,eklitzke/envoy,jrajahalme/envoy,lyft/envoy,jrajahalme/envoy,envoyproxy/envoy,jrajahalme/envoy,eklitzke/envoy,jrajahalme/envoy,envoyproxy/envoy,eklitzke/envoy,envoyproxy/envoy,dnoe/envoy,envoyproxy/envoy,lizan/envoy,envoyproxy/envoy,envoyproxy/envoy-wasm,dnoe/envoy,jrajahalme/envoy,envoyproxy/envoy-wasm,eklitzke/envoy,lizan/envoy,lyft/envoy,envoyproxy/envoy,istio/envoy,envoyproxy/envoy,eklitzke/envoy,envoyproxy/envoy,istio/envoy,istio/envoy,lizan/envoy,envoyproxy/envoy,envoyproxy/envoy-wasm,lyft/envoy,istio/envoy,envoyproxy/envoy-wasm,istio/envoy,istio/envoy,envoyproxy/envoy-wasm,eklitzke/envoy,dnoe/envoy,lyft/envoy,envoyproxy/envoy,lyft/envoy,lizan/envoy,envoyproxy/envoy,envoyproxy/envoy-wasm,lizan/envoy