run modernize

tools/simdstring/scalar.go

@@ -41,7 +41,7 @@ func index_byte2_string_scalar(data string, a, b byte) int {
 }
 
 func index_c0_scalar(data []byte) int {
-	for i := 0; i < len(data); i++ {
+	for i := range data {
 		if data[i] == 0x7f || data[i] < ' ' {
 			return i
 		}