fix(*) make plugin impervious to underscore changes

Kong / kong-plugin-prometheus

Prometheus plugin for Kong - this plugin has been moved into https://github.com/Kong/kong, please open issues and PRs in that repo

Apache License 2.0

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Closed kikito closed 3 years ago

kikito commented 3 years ago

This change makes the code impervious to setting lua_transform_underscores_in_response_headers to off.

Related with Kong/kong#6995