[NetworkManager-libreswan] properties: fix the new translatable string

[Piotr Drąg <piotrdrag src gnome org>]

commit 060385308ac69af78a79b2827bcd347ff9a1939b
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Fri Sep 21 22:12:38 2018 +0200

    properties: fix the new translatable string

 properties/nm-libreswan-dialog.ui | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/properties/nm-libreswan-dialog.ui b/properties/nm-libreswan-dialog.ui
index 5239f39..6fb7911 100644
--- a/properties/nm-libreswan-dialog.ui
+++ b/properties/nm-libreswan-dialog.ui
@@ -711,7 +711,7 @@ config: rekey &lt;no/yes&gt;</property>
                         <property name="visible">True</property>
                         <property name="can_focus">True</property>
                         <property name="receives_default">False</property>
-                        <property name="tooltip_text" translatable="yes">Disable perfect forward security. 
Enable this option only, if the server doesn't support PFS.
+                        <property name="tooltip_text" translatable="yes">Disable perfect forward security. 
Enable this option only if the server doesn’t support PFS.
 config: pfs &lt;no/yes&gt;</property>
                         <property name="xalign">0</property>
                         <property name="draw_indicator">True</property>