Fix typo

Signed-off-by: Martin Hickey <martin.hickey@ie.ibm.com>
(cherry picked from commit 4cc19d1d82)

pkg/action/action.go

@@ -98,7 +98,7 @@ type Configuration struct {
 //
 // TODO: This function is badly in need of a refactor.
 // TODO: As part of the refactor the duplicate code in cmd/helm/template.go should be removed
-//       This code has to do with writing files to dick.
+//       This code has to do with writing files to disk.
 func (c *Configuration) renderResources(ch *chart.Chart, values chartutil.Values, releaseName, outputDir string, subNotes, useReleaseName, includeCrds bool, pr postrender.PostRenderer, dryRun bool) ([]*release.Hook, *bytes.Buffer, string, error) {
 	hs := []*release.Hook{}
 	b := bytes.NewBuffer(nil)