Fails to detect magic number when initialized as part of "if"

[leonklingele]

gomnd fails to detect the magic numbers 2 and 4 in this code:

package main

import (
    "log"
)

func main() {
	if got, want := 2, 4; got*2 != want {
		log.Printf("%d * 2 != %d\n", got, want)
	}
}