Fix issues found by staticcheck linter

pkg/git/test/helpers.go

@@ -4,7 +4,6 @@ package test
 import (
 	"fmt"
 	"git-get/pkg/run"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"runtime"
@@ -16,7 +15,9 @@ import (
 func TempDir(t *testing.T, parent string) string {
 	t.Helper()
 
-	dir, err := ioutil.TempDir(parent, "git-get-repo-")
+	// t.TempDir() is not enough in this case, we need to be able to create dirs inside the parent dir
+	//nolint:usetesting
+	dir, err := os.MkdirTemp(parent, "git-get-repo-")
 	checkFatal(t, err)
 
 	// Automatically remove temp dir when the test is over.

pkg/print/print.go

@@ -27,9 +27,7 @@ func Errors(repos []Printable) string {
 	errors := []string{}
 
 	for _, repo := range repos {
-		for _, err := range repo.Errors() {
-			errors = append(errors, err)
-		}
+		errors = append(errors, repo.Errors()...)
 	}
 
 	if len(errors) == 0 {