Merge pull request #171 from docker/fix-teams-members-output

Fix org members and teams command output

internal/commands/org/members.go

@@ -93,5 +93,5 @@ func printMembers(out io.Writer, values interface{}) error {
 		tw.Line()
 	}
 
-	return nil
+	return tw.Flush()
 }

internal/commands/org/teams.go

@@ -98,5 +98,5 @@ func printTeams(out io.Writer, values interface{}) error {
 		tw.Line()
 	}
 
-	return nil
+	return tw.Flush()
 }