service/cloudfront/sign: Fix Documentation Typo
@@ -179,7 +179,7 @@ func cookieURLScheme(u string) (string, error) {
//
// // Or get Signed cookies for a resource that will expire in 1 hour
// // and set path and domain of cookies
-// cookies, err := s.Sign(policy, func(o *sign.CookieOptions) {
+// cookies, err := s.SignWithPolicy(policy, func(o *sign.CookieOptions) {
// o.Path = "/"
// o.Domain = ".example.com"
// })
