Some s3 service's capability of directory

[cndonnie]

In some s3 capable service such as minio , directory such as root / , not recognized as directory by api, so ftp client can't list directory.
In this case, could we just treat path name with suffix / as directory?
I had try it without thoughtful, it seams well.

diff --git a/handle_dirs.go b/handle_dirs.go
index e2c9cbb..08560f1 100644
--- a/handle_dirs.go
+++ b/handle_dirs.go
@@ -30,7 +30,7 @@ func (c *clientHandler) handleCWD(param string) error {
 	p := c.absPath(param)
 
 	if stat, err := c.driver.Stat(p); err == nil {
-		if stat.IsDir() {
+		if stat.IsDir() || strings.HasSuffix(p, "/") { /*treat / suffix as directory*/
 			c.SetPath(p)
 			c.writeMessage(StatusFileOK, fmt.Sprintf("CD worked on %s", p))
 		} else {
@@ -325,7 +325,7 @@ func (c *clientHandler) getFileList(param string, filePathAllowed bool) ([]os.Fi
 		return nil, err
 	}
 
-	if !info.IsDir() {
+	if !info.IsDir() && !strings.HasSuffix(listPath, "/") { /*treat / suffix as directory*/
 		if filePathAllowed {
 			return []os.FileInfo{info}, nil
 		}