[krb5-auth-dialog] kerberos: Update comment

[Guido Günther <guidog src gnome org>]

commit 8bc48fa4c478ccf0dfeeab0730736e6e0119c0f4
Author: Guido Günther <agx sigxcpu org>
Date:   Thu Oct 13 21:16:57 2022 +0200

    kerberos: Update comment
    
    The tray icon is no more

 src/ka-kerberos.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/ka-kerberos.c b/src/ka-kerberos.c
index c0b534e..caf1339 100644
--- a/src/ka-kerberos.c
+++ b/src/ka-kerberos.c
@@ -989,7 +989,7 @@ ka_check_credentials (KaApplet *applet, const char *newprincipal)
 }
 
 
-/* initiate grabbing of credentials (e.g. on leftclick of tray icon) */
+/* initiate grabbing of credentials (on "Get Ticket" button click) */
 gboolean
 ka_grab_credentials (KaApplet *applet)
 {