[libnma] cert-chooser: fix using GTK3 only API in key_changed_cb()

[Thomas Haller <thaller src gnome org>]

commit e3ae93e0343d9021c844ce3deba32fcf4e56dcb7
Author: Thomas Haller <thaller redhat com>
Date:   Thu Mar 5 21:27:55 2020 +0100

    cert-chooser: fix using GTK3 only API in key_changed_cb()
    
    Fixes: 7822b375753e ('cert-chooser: improving for handling certificate selection')

 src/nma-file-cert-chooser.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/nma-file-cert-chooser.c b/src/nma-file-cert-chooser.c
index 34e43764..ca84e730 100644
--- a/src/nma-file-cert-chooser.c
+++ b/src/nma-file-cert-chooser.c
@@ -257,7 +257,7 @@ key_changed_cb (GtkFileChooserButton *file_chooser_button, gpointer user_data)
                }
                sensitive = TRUE;
        }
-       gtk_entry_set_text (GTK_ENTRY (priv->key_password), "");
+       gtk_editable_set_text (GTK_EDITABLE (priv->key_password), "");
        gtk_widget_set_sensitive (priv->key_password, sensitive);
        gtk_widget_set_sensitive (priv->key_password_label, sensitive);
        widget_unset_error (priv->key_password);