Update links from golang.org -> go.dev

xxhash_unsafe.go

@@ -12,7 +12,7 @@ import (
 
 // In the future it's possible that compiler optimizations will make these
 // XxxString functions unnecessary by realizing that calls such as
-// Sum64([]byte(s)) don't need to copy s. See https://golang.org/issue/2205.
+// Sum64([]byte(s)) don't need to copy s. See https://go.dev/issue/2205.
 // If that happens, even if we keep these functions they can be replaced with
 // the trivial safe code.
 

xxhash_unsafe_test.go

@@ -26,7 +26,7 @@ func TestStringAllocs(t *testing.T) {
 	})
 }
 
-// This test is inspired by the Go runtime tests in https://golang.org/cl/57410.
+// This test is inspired by the Go runtime tests in https://go.dev/cl/57410.
 // It asserts that certain important functions may be inlined.
 func TestInlining(t *testing.T) {
 	funcs := map[string]struct{}{