swap order of require.Equal() args

we had the order of require.Equal() arguments mixed up. it should be
(expected, actual) not the other way around

updated with

    find . -name "*_test.go" -exec gofmt -r "require.Equal(a, b) -> require.Equal(b, a)" -w '{}' \+

db/db_test.go

@@ -38,12 +38,12 @@ func TestGetSetting(t *testing.T) {
 
 	actual, err := testDB.GetSetting(key)
 	require.NoError(err)
-	require.Equal(actual, value)
+	require.Equal(value, actual)
 
 	require.NoError(testDB.SetSetting(key, value))
 	actual, err = testDB.GetSetting(key)
 	require.NoError(err)
-	require.Equal(actual, value)
+	require.Equal(value, actual)
 }
 
 func TestMain(m *testing.M) {