[gthumb] added tooltip to reset button, consistent with other reset buttons

[Michael J. Chudobiak <mjc src gnome org>]

commit c4db7e3495fedba6468307b902e7acc46cede8aa
Author: Michael J. Chudobiak <mjc avtechpulse com>
Date:   Fri Dec 18 11:02:37 2015 -0500

    added tooltip to reset button, consistent with other reset buttons

 extensions/file_tools/gth-curve-editor.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/extensions/file_tools/gth-curve-editor.c b/extensions/file_tools/gth-curve-editor.c
index eef3b5a..a779207 100644
--- a/extensions/file_tools/gth-curve-editor.c
+++ b/extensions/file_tools/gth-curve-editor.c
@@ -978,6 +978,7 @@ gth_curve_editor_init (GthCurveEditor *self)
 
        button = gtk_button_new ();
        gtk_container_add (GTK_CONTAINER (button), gtk_image_new_from_icon_name ("edit-undo-symbolic", 
GTK_ICON_SIZE_BUTTON));
+       gtk_widget_set_tooltip_text (button, _("Reset"));
        gtk_widget_show_all (button);
        gtk_box_pack_start (GTK_BOX (sub_box), button, FALSE, FALSE, 0);