[nautilus] properties-window.ui: Set "use_underline" property

[António Fernandes <antoniof src gnome org>]

commit 74e1e6098dac3f9867382dc11b27c0fbc86508aa
Author: Bryan P <Bryan P>
Date:   Wed Oct 7 10:45:13 2020 -0400

    properties-window.ui: Set "use_underline" property
    
    To correctly setup the mnemonic character following an underscore in
    a checkbox label.
    
    Closes #1630

 src/resources/ui/nautilus-properties-window.ui | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/resources/ui/nautilus-properties-window.ui b/src/resources/ui/nautilus-properties-window.ui
index 653cdf6e1..d9cac49bc 100644
--- a/src/resources/ui/nautilus-properties-window.ui
+++ b/src/resources/ui/nautilus-properties-window.ui
@@ -1182,6 +1182,7 @@
                     <child>
                       <object class="GtkCheckButton" id="execute_checkbox">
                         <property name="label" translatable="yes">Allow _executing file as program</property>
+                        <property name="use_underline">True</property>
                         <property name="can_focus">True</property>
                         <property name="receives_default">False</property>
                         <property name="margin_top">12</property>