Run 'go mod tidy'

[sc-13826]

Author: andrewlecuyer

go.mod

@@ -13,13 +13,15 @@ require (
 	github.com/sirupsen/logrus v1.5.0
 	github.com/spf13/cobra v0.0.5
 	github.com/spf13/pflag v1.0.5
+	github.com/spf13/viper v1.3.2
 	github.com/xdg/stringprep v1.0.0
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.13.0
 	go.opentelemetry.io/otel v0.13.0
 	go.opentelemetry.io/otel/exporters/stdout v0.13.0
 	go.opentelemetry.io/otel/exporters/trace/jaeger v0.13.0
 	golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0
 	golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208
+	golang.org/x/tools v0.0.0-20200904185747-39188db58858
 	k8s.io/api v0.20.1
 	k8s.io/apimachinery v0.20.1
 	k8s.io/client-go v0.20.1