fix linters, go to v2

lib_test.go

@@ -3,6 +3,7 @@ package valpass_test
 import (
 	"bufio"
 	"fmt"
+	"log"
 	"os"
 	"os/exec"
 	"strings"
@@ -372,7 +373,11 @@ func ReadDict(path string) []string {
 	if err != nil {
 		panic(err)
 	}
-	defer file.Close()
+	defer func() {
+		if err := file.Close(); err != nil {
+			log.Fatal(err)
+		}
+	}()
 
 	var lines []string
 	scanner := bufio.NewScanner(file)