ref(pkg/chartutil): move comment

Move comment out of test. Move ref location in test.

pkg/chartutil/values.go

@@ -280,6 +280,9 @@ func coalesceValues(c *chart.Chart, v map[string]interface{}) (map[string]interf
 	for key, val := range nv {
 		if value, ok := v[key]; ok {
 			if value == nil {
+				// When the YAML value is null, we remove the value's key.
+				// This allows Helm's various sources of values (value files or --set) to
+				// remove incompatible keys from any previous chart, file, or set values.
 				delete(v, key)
 			} else if dest, ok := value.(map[string]interface{}); ok {
 				// if v[key] is a table, merge nv's val table into v[key].

pkg/chartutil/values_test.go

@@ -275,6 +275,7 @@ func ttpl(tpl string, v map[string]interface{}) (string, error) {
 	return b.String(), nil
 }
 
+// ref: http://www.yaml.org/spec/1.2/spec.html#id2803362
 var testCoalesceValuesYaml = `
 top: yup
 bottom: null
@@ -350,10 +351,6 @@ func TestCoalesceValues(t *testing.T) {
 		}
 	}
 
-	// When the YAML value is null, we remove the value's key.
-	// This allows Helm's various sources of values (value files or --set) to
-	// remove incompatible keys from any previous chart, file, or set values.
-	// ref: http://www.yaml.org/spec/1.2/spec.html#id2803362
 	nullKeys := []string{"bottom", "right", "left", "front"}
 	for _, nullKey := range nullKeys {
 		if _, ok := v[nullKey]; ok {