format source tree using goimports

config/config_minimal_test.go

@@ -2,6 +2,7 @@ package config
 
 import (
 	"testing"
+
 	"github.com/stretchr/testify/assert"
 )
 
@@ -36,4 +37,4 @@ jobs:
     - type: last_n 
       count: 1
 `)
-}
+}