[seahorse] ssh: Add default case to KeyLengthChooser.get_length

[Niels De Graef <nielsdg src gnome org>]

commit 2e84d172b6bf1a88019a527fed72a9d301121150
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Wed Feb 17 16:32:35 2021 +0100

    ssh: Add default case to KeyLengthChooser.get_length
    
    This fixes a compiler warning.

 ssh/key-length-chooser.vala | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/ssh/key-length-chooser.vala b/ssh/key-length-chooser.vala
index 31fe399f..be65e4fc 100644
--- a/ssh/key-length-chooser.vala
+++ b/ssh/key-length-chooser.vala
@@ -75,9 +75,9 @@ public class Seahorse.Ssh.KeyLengthChooser : Gtk.Stack {
                 return int.parse(this.combobox.get_active_text());
             case Algorithm.ED25519:
                 return 256;
+            default:
+                return 0;
         }
-
-        return 0;
     }
 
     private void on_algo_changed (GLib.Object src, ParamSpec pspec) {