all: use Go 1.22 range-over-int

Updates #11058

Change-Id: I35e7ef9b90e83cac04ca93fd964ad00ed5b48430
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>

util/winutil/restartmgr_windows.go

@@ -25,7 +25,7 @@ import (
 var (
 	// ErrDefunctProcess is returned by (*UniqueProcess).AsRestartableProcess
 	// when the process no longer exists.
-	ErrDefunctProcess        = errors.New("process is defunct")
+	ErrDefunctProcess = errors.New("process is defunct")
 	// ErrProcessNotRestartable is returned by (*UniqueProcess).AsRestartableProcess
 	// when the process has previously indicated that it must not be restarted
 	// during a patch/upgrade.

util/winutil/restartmgr_windows_test.go

@@ -67,7 +67,7 @@ func testRestartableProcessesImpl(N int, t *testing.T) {
 	const binary = "testrestartableprocesses"
 	fq := pathToTestProg(t, binary)
 
-	for i := 0; i < N; i++ {
+	for range N {
 		startTestProg(t, binary, "RestartableProcess")
 	}
 	t.Cleanup(func() {

util/winutil/testdata/testrestartableprocesses/main.go

@@ -10,7 +10,7 @@ import "os"
 
 var (
 	cmds = map[string]func(){}
-	err error
+	err  error
 )
 
 func register(name string, f func()) {