build: use "for i := range n", added in go1.22

cmd/convmv/convmv_test.go

@@ -152,7 +152,7 @@ func makeTestFiles(t *testing.T, r *fstest.Run, dir string) []fstest.Item {
 	items := []fstest.Item{}
 	for _, c := range alphabet {
 		var out strings.Builder
-		for i := rune(0); i < 7; i++ {
+		for i := range rune(7) {
 			out.WriteRune(c + i)
 		}
 		fileName := path.Join(dir, fmt.Sprintf("%04d-%s.txt", n, out.String()))

cmd/test/info/base32768.go

@@ -34,7 +34,7 @@ func (r *results) checkBase32768() {
 	// Create test files
 	for _, c := range safeAlphabet {
 		var out strings.Builder
-		for i := rune(0); i < 32; i++ {
+		for i := range rune(32) {
 			out.WriteRune(c + i)
 		}
 		fileName := filepath.Join(dir, fmt.Sprintf("%04d-%s.txt", n, out.String()))

cmd/test/info/info.go

@@ -292,7 +292,7 @@ func (r *results) checkControls() {
 		tokens <- struct{}{}
 	}
 	var wg sync.WaitGroup
-	for i := rune(0); i < 128; i++ {
+	for i := range rune(128) {
 		s := string(i)
 		if i == 0 || i == '/' {
 			// We're not even going to check NULL or /