chore: esthetics + update changelog

CHANGELOG.md

@@ -7,6 +7,7 @@
 * Add TTY audit feature ([#23](https://github.com/moul/sshportal/issues/23)) by [@sabban](https://github.com/sabban)
 * Fix `--assign-*` commands when using MySQL driver ([#45](https://github.com/moul/sshportal/issues/45))
 * Add *HOP* support, an efficient and integrated way of using a jump host transparently ([#47](https://github.com/moul/sshportal/issues/47)) by [@mathieui](https://github.com/mathieui)
+* Fix panic on some `ls` commands ([#54](https://github.com/moul/sshportal/pull/54)) by [@jle64](https://github.com/jle64)
 
 ## v1.7.1 (2018-01-03)
 

shell.go

@@ -32,6 +32,10 @@ var banner = `
 `
 var startTime = time.Now()
 
+const (
+	naMessage = "n/a"
+)
+
 func shell(s ssh.Session) error {
 	var (
 		sshCommand = s.Command()
@@ -1862,11 +1866,9 @@ GLOBAL OPTIONS:
 						table.SetBorder(false)
 						table.SetCaption(true, fmt.Sprintf("Total: %d userkeys.", len(userKeys)))
 						for _, userkey := range userKeys {
-							var email string
+							email := naMessage
 							if userkey.User != nil {
-									email = userkey.User.Email
-							} else {
-									email = "n/a"
+								email = userkey.User.Email
 							}
 							table.Append([]string{
 								fmt.Sprintf("%d", userkey.ID),
@@ -1967,17 +1969,13 @@ GLOBAL OPTIONS:
 								duration = humanize.RelTime(session.CreatedAt, *session.StoppedAt, "", "")
 							}
 							duration = strings.Replace(duration, "now", "1 second", 1)
-							var hostname string
+							hostname := naMessage
 							if session.Host != nil {
-									hostname = session.Host.Name
-							} else {
-									hostname = "n/a"
+								hostname = session.Host.Name
 							}
-							var username string
+							username := naMessage
 							if session.User != nil {
-									username = session.User.Name
-							} else {
-									username = "n/a"
+								username = session.User.Name
 							}
 							table.Append([]string{
 								fmt.Sprintf("%d", session.ID),