Fix linting failuires (#230)

Author: bplunkett-stripe

pkg/diff/materialized_view_sql_generator_test.go

@@ -3,8 +3,8 @@ package diff
 import (
 	"testing"
 
-	"github.com/stripe/pg-schema-diff/internal/schema"
 	"github.com/stretchr/testify/assert"
+	"github.com/stripe/pg-schema-diff/internal/schema"
 )
 
 func TestMaterializedViewSQLGenerator_Add_WithTablespace(t *testing.T) {
@@ -65,4 +65,4 @@ func TestMaterializedViewSQLGenerator_Add_WithoutTablespace(t *testing.T) {
 	expectedDDL := `CREATE MATERIALIZED VIEW "public"."test_view" AS
 SELECT id, name FROM users`
 	assert.Equal(t, expectedDDL, result.vertices[0].statements[0].DDL)
-}
+}