make "LTC volume" preference translatable

git-svn-id: svn://localhost/ardour2/branches/3.0@13781 d708f5d6-7413-0410-9779-e7cbd77b26cf

diff --git a/gtk2_ardour/rc_option_editor.cc b/gtk2_ardour/rc_option_editor.cc
index 50edfb2183810059db2a7257ad5790f01a108a38..e8486ed5c0685ff1624ab8b8ec389dc71feb7d78 100644 (file)
--- a/gtk2_ardour/rc_option_editor.cc
+++ b/gtk2_ardour/rc_option_editor.cc
@@ -1153,7 +1153,7 @@ RCOptionEditor::RCOptionEditor ()
   _ltc_volume_adjustment = new Gtk::Adjustment(-18, -50, 0, .5, 5);
        _ltc_volume_adjustment->set_value (20 * log10(_rc_config->get_ltc_output_volume()));
        _ltc_volume_adjustment->signal_value_changed().connect (sigc::mem_fun (*this, &RCOptionEditor::ltc_generator_volume_changed));
-       _ltc_volume_slider = new HSliderOption("ltcvol", ("LTC generator level:"), *_ltc_volume_adjustment);
+       _ltc_volume_slider = new HSliderOption("ltcvol", _("LTC generator level"), *_ltc_volume_adjustment);
 
        Gtkmm2ext::UI::instance()->set_tip
                (_ltc_volume_slider->tip_widget(),