Merge pull request #3984 from muehlburger/dev

Fix filenames in tarball created on windows

pkg/chartutil/save.go

@@ -205,7 +205,7 @@ func writeTarContents(out *tar.Writer, c *chart.Chart, prefix string) error {
 func writeToTar(out *tar.Writer, name string, body []byte) error {
 	// TODO: Do we need to create dummy parent directory names if none exist?
 	h := &tar.Header{
-		Name: name,
+		Name: filepath.ToSlash(name),
 		Mode: 0755,
 		Size: int64(len(body)),
 	}