false positive when close is in another package

The following code triggers a false positive. 

```golang
package util

import (
	"io"
	"log"
)

func Close(c io.Closer) {
	if err := c.Close(); err != nil {
		log.Printf("error closing io: %w", err)
	}
}
```

```golang 
package main

import (
	"net/http"
	"util"
)

func main() {
	res, _ := http.Get("http://example.com/")
	defer util.Close(res.Body)
}
```