update redirect on non GET methods to 308

- hadn't realized is was added to the http package, wasn't in previous releases.

Author: Dean Karn

pure.go

@@ -509,7 +509,7 @@ func (p *Mux) redirect(method string, to string) (h http.HandlerFunc) {
 	code := http.StatusMovedPermanently
 
 	if method != http.MethodGet {
-		code = http.StatusTemporaryRedirect
+		code = http.StatusPermanentRedirect
 	}
 
 	h = func(w http.ResponseWriter, r *http.Request) {

pure_test.go

@@ -183,7 +183,7 @@ func TestAllMethods(t *testing.T) {
 			path:    "/redirect",
 			url:     "/redirect/",
 			handler: defaultHandler,
-			code:    http.StatusTemporaryRedirect,
+			code:    http.StatusPermanentRedirect,
 			body:    "",
 		},
 	}
@@ -467,7 +467,7 @@ func TestRedirect(t *testing.T) {
 	Equal(t, code, http.StatusMovedPermanently)
 
 	code, _ = request(http.MethodPost, "/home", p)
-	Equal(t, code, http.StatusTemporaryRedirect)
+	Equal(t, code, http.StatusPermanentRedirect)
 
 	p.SetRedirectTrailingSlash(false)