[network-manager-pptp] Remove markup from strings in UI files

[Piotr Drąg <piotrdrag src gnome org>]

commit 4053753b13dd77cc4f66a485be3cdf79ebc2a1ad
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Mon Oct 3 23:07:43 2016 +0200

    Remove markup from strings in UI files
    
    See https://wiki.gnome.org/Initiatives/GnomeGoals/RemoveMarkupInMessages

 properties/nm-pptp-dialog.ui |   37 ++++++++++++++++++++++++-------------
 1 files changed, 24 insertions(+), 13 deletions(-)
---
diff --git a/properties/nm-pptp-dialog.ui b/properties/nm-pptp-dialog.ui
index 4a317ac..87327d7 100644
--- a/properties/nm-pptp-dialog.ui
+++ b/properties/nm-pptp-dialog.ui
@@ -93,8 +93,10 @@
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="xalign">0</property>
-                    <property name="label" translatable="yes">&lt;b&gt;Authentication&lt;/b&gt;</property>
-                    <property name="use_markup">True</property>
+                    <property name="label" translatable="yes">Authentication</property>
+                    <attributes>
+                      <attribute name="weight" value="bold"/>
+                    </attributes>
                   </object>
                   <packing>
                     <property name="expand">False</property>
@@ -179,8 +181,10 @@ config: refuse-pap, refuse-chap, refuse-mschap, refuse-mschap-v2, refuse-eap</pr
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="xalign">0</property>
-                    <property name="label" translatable="yes">&lt;b&gt;Security and 
Compression&lt;/b&gt;</property>
-                    <property name="use_markup">True</property>
+                    <property name="label" translatable="yes">Security and Compression</property>
+                    <attributes>
+                      <attribute name="weight" value="bold"/>
+                    </attributes>
                   </object>
                   <packing>
                     <property name="expand">False</property>
@@ -395,8 +399,10 @@ config: novj (when unchecked)</property>
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="xalign">0</property>
-                    <property name="label" translatable="yes">&lt;b&gt;Echo&lt;/b&gt;</property>
-                    <property name="use_markup">True</property>
+                    <property name="label" translatable="yes">Echo</property>
+                    <attributes>
+                      <attribute name="weight" value="bold"/>
+                    </attributes>
                   </object>
                   <packing>
                     <property name="expand">False</property>
@@ -447,8 +453,10 @@ config: lcp-echo-failure and lcp-echo-interval</property>
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="xalign">0</property>
-                    <property name="label" translatable="yes">&lt;b&gt;Misc&lt;/b&gt;</property>
-                    <property name="use_markup">True</property>
+                    <property name="label" translatable="yes">Misc</property>
+                    <attributes>
+                      <attribute name="weight" value="bold"/>
+                    </attributes>
                   </object>
                   <packing>
                     <property name="expand">False</property>
@@ -559,8 +567,10 @@ config: unit &lt;n&gt;</property>
             <property name="visible">True</property>
             <property name="can_focus">False</property>
             <property name="xalign">0</property>
-            <property name="label" translatable="yes">&lt;b&gt;General&lt;/b&gt;</property>
-            <property name="use_markup">True</property>
+            <property name="label" translatable="yes">General</property>
+            <attributes>
+              <attribute name="weight" value="bold"/>
+            </attributes>
           </object>
           <packing>
             <property name="expand">False</property>
@@ -633,8 +643,10 @@ config: the first parameter of pptp</property>
             <property name="visible">True</property>
             <property name="can_focus">False</property>
             <property name="xalign">0</property>
-            <property name="label" translatable="yes">&lt;b&gt;Optional&lt;/b&gt;</property>
-            <property name="use_markup">True</property>
+            <property name="label" translatable="yes">Optional</property>
+            <attributes>
+              <attribute name="weight" value="bold"/>
+            </attributes>
           </object>
           <packing>
             <property name="expand">False</property>
@@ -807,7 +819,6 @@ config: user &lt;name&gt;</property>
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="label" translatable="yes">Ad_vanced…</property>
-                    <property name="use_markup">True</property>
                     <property name="use_underline">True</property>
                   </object>
                   <packing>