Fix a golint issue caused by typo

Signed-off-by: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>

pkg/action/upgrade.go

@@ -117,13 +117,13 @@ func NewUpgrade(cfg *Configuration) *Upgrade {
 	}
 }
 
-// Run executes the upgrade on the given release
+// Run executes the upgrade on the given release.
 func (u *Upgrade) Run(name string, chart *chart.Chart, vals map[string]interface{}) (*release.Release, error) {
 	ctx := context.Background()
 	return u.RunWithContext(ctx, name, chart, vals)
 }
 
-// Run executes the upgrade on the given release with context.
+// RunWithContext executes the upgrade on the given release with context.
 func (u *Upgrade) RunWithContext(ctx context.Context, name string, chart *chart.Chart, vals map[string]interface{}) (*release.Release, error) {
 	if err := u.cfg.KubeClient.IsReachable(); err != nil {
 		return nil, err