Fix an error in the number of requests of Varnish
Fix an error in the number of requests of Varnish

ki38sato/mackerel-agent-plugins,xorphitus/mackerel-agent-plugins,mackerelio/mackerel-agent-plugins,ariarijp/mackerel-agent-plugins,ariarijp/mackerel-agent-plugins,mackerelio/mackerel-agent-plugins,hiroakis/mackerel-agent-plugins,hiroakis/mackerel-agent-plugins,hiroakis/mackerel-agent-plugins,naokibtn/mackerel-agent-plugins,mackerelio/mackerel-agent-plugins,ariarijp/mackerel-agent-plugins,hiroakis/mackerel-agent-plugins,monochromegane/mackerel-agent-plugins,kentokento/mackerel-agent-plugins,kentokento/mackerel-agent-plugins,xorphitus/mackerel-agent-plugins,xorphitus/mackerel-agent-plugins,mackerelio/mackerel-agent-plugins,kentokento/mackerel-agent-plugins,ariarijp/mackerel-agent-plugins,ki38sato/mackerel-agent-plugins,naokibtn/mackerel-agent-plugins,ki38sato/mackerel-agent-plugins,y-kuno/mackerel-agent-plugins,y-kuno/mackerel-agent-plugins,monochromegane/mackerel-agent-plugins,naokibtn/mackerel-agent-plugins,y-kuno/mackerel-agent-plugins,ki38sato/mackerel-agent-plugins,y-kuno/mackerel-agent-plugins,monochromegane/mackerel-agent-plugins,xorphitus/mackerel-agent-plugins