fix vendoring issue

Author: timjohncurtis

go.mod

@@ -24,6 +24,10 @@ replace (
 	k8s.io/apiextensions-apiserver => k8s.io/apiextensions-apiserver v0.0.0-20181213153335-0fe22c71c476
 	k8s.io/apimachinery => k8s.io/apimachinery v0.0.0-20181127025237-2b1284ed4c93
 	k8s.io/client-go => k8s.io/client-go v0.0.0-20181213151034-8d9ed539ba31
+
+	// autoneg is a dependency of early versions of operator-sdk (pre v1.0).
+	// it is no longer hosted on bitbucket.org, so the files are checked in locally and replaced here.
+	bitbucket.org/ww/goautoneg => ./vendor/bitbucket.org/ww/autoneg
 )
 
 replace (