vendor: update all dependencies to latest versions

vendor/github.com/pkg/sftp/server_stubs.go

@@ -4,9 +4,29 @@ package sftp
 
 import (
 	"os"
-	"path"
+	"time"
+	"fmt"
 )
 
 func runLs(dirname string, dirent os.FileInfo) string {
-	return path.Join(dirname, dirent.Name())
+	typeword := runLsTypeWord(dirent)
+	numLinks := 1
+	if dirent.IsDir() {
+		numLinks = 0
+	}
+	username := "root"
+	groupname := "root"
+	mtime := dirent.ModTime()
+	monthStr := mtime.Month().String()[0:3]
+	day := mtime.Day()
+	year := mtime.Year()
+	now := time.Now()
+	isOld := mtime.Before(now.Add(-time.Hour * 24 * 365 / 2))
+
+	yearOrTime := fmt.Sprintf("%02d:%02d", mtime.Hour(), mtime.Minute())
+	if isOld {
+		yearOrTime = fmt.Sprintf("%d", year)
+	}
+
+	return fmt.Sprintf("%s %4d %-8s %-8s %8d %s %2d %5s %s", typeword, numLinks, username, groupname, dirent.Size(), monthStr, day, yearOrTime, dirent.Name())
 }