[file-roller/wip/jtojnar/extract-mnemonic] Add mnemonic to Extract button

[Jan Tojnar <jtojnar src gnome org>]

commit 932e05ae3e62fed85d5d679c0ab717cfc4dfb2ec
Author: Jan Tojnar <jtojnar gmail com>
Date:   Mon Jun 20 16:46:13 2022 +0200

    Add mnemonic to Extract button
    
    Fixes: https://gitlab.gnome.org/GNOME/file-roller/-/issues/70

 src/fr-window.c | 2 +-
 src/gtk-utils.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/fr-window.c b/src/fr-window.c
index d638e189..1bf89b10 100644
--- a/src/fr-window.c
+++ b/src/fr-window.c
@@ -5788,7 +5788,7 @@ fr_window_construct (FrWindow *window)
 
        header_bar_size_group = gtk_size_group_new (GTK_SIZE_GROUP_VERTICAL);
 
-       button = _gtk_header_bar_create_text_button (C_("Action", "Extract"), NULL, "win.extract-files");
+       button = _gtk_header_bar_create_text_button (C_("Action", "_Extract"), NULL, "win.extract-files");
        gtk_size_group_add_widget (header_bar_size_group, button);
        gtk_header_bar_pack_start (GTK_HEADER_BAR (window->priv->headerbar), button);
 
diff --git a/src/gtk-utils.c b/src/gtk-utils.c
index e0927771..a807df63 100644
--- a/src/gtk-utils.c
+++ b/src/gtk-utils.c
@@ -637,7 +637,7 @@ _gtk_header_bar_create_text_button (const char       *label,
        g_return_val_if_fail (label != NULL, NULL);
        g_return_val_if_fail (action_name != NULL, NULL);
 
-       button = gtk_button_new_with_label (label);
+       button = gtk_button_new_with_mnemonic (label);
        gtk_widget_set_valign (button, GTK_ALIGN_CENTER);
        gtk_style_context_add_class (gtk_widget_get_style_context (button), "text-button");
        gtk_style_context_remove_class (gtk_widget_get_style_context (button), "image-button");