Cherry-pick #21197 to 7.x: Fix libbeat.output.*.bytes metrics for ES#21210

Merged

kvch merged 1 commit intoelastic:7.xfrom kvch:backport_21197_7.x

Sep 22, 2020

+26-7

Commits on Sep 22, 2020

Fix libbeat.output.*.bytes metrics of Elasticsearch output (elastic#21197 )
kvch
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