libnetwork/drvregistry: format code with gofumpt

Formatting the code with https://github.com/mvdan/gofumpt

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

libnetwork/drvregistry/drvregistry.go

@@ -15,8 +15,10 @@ type DrvRegistry struct {
 	pluginGetter plugingetter.PluginGetter
 }
 
-var _ driverapi.DriverCallback = (*DrvRegistry)(nil)
-var _ ipamapi.Callback = (*DrvRegistry)(nil)
+var (
+	_ driverapi.DriverCallback = (*DrvRegistry)(nil)
+	_ ipamapi.Callback         = (*DrvRegistry)(nil)
+)
 
 // InitFunc defines the driver initialization function signature.
 type InitFunc func(driverapi.DriverCallback, map[string]interface{}) error

libnetwork/drvregistry/drvregistry_test.go

@@ -63,6 +63,7 @@ func initIPAMDrivers(r *DrvRegistry) error {
 
 	return nil
 }
+
 func TestNew(t *testing.T) {
 	getNew(t)
 }