pkg/services/alerting/reader.go: Fix should use for range instead of for { select {} }.
pkg/services/alerting/reader.go: Fix should use for range instead of for { select {} }.

$ gometalinter --vendor --deadline 10m --disable-all --enable=megacheck ./...
pkg/services/alerting/reader.go:37:2:warning: should use for range instead of for { select {} } (S1000) (megacheck)

grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana