[network-manager-pptp] appdata: fix appstream-util validate complaints

[Lubomir Rintel <lkundrak src gnome org>]

commit ca10580bbd6da05d5930614767ad6d57d3c3f384
Author: Lubomir Rintel <lkundrak v3 sk>
Date:   Thu Apr 14 12:36:27 2016 +0200

    appdata: fix appstream-util validate complaints

 appdata/network-manager-pptp.appdata.xml.in |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/appdata/network-manager-pptp.appdata.xml.in b/appdata/network-manager-pptp.appdata.xml.in
index 43be655..447727b 100644
--- a/appdata/network-manager-pptp.appdata.xml.in
+++ b/appdata/network-manager-pptp.appdata.xml.in
@@ -20,16 +20,16 @@
 
   <description>
     <_p>Support for configuring PPTP virtual private network connections.</_p>
-    <_p>Compatible with Microsoft PPTP servers.</_p>
+    <_p>Compatible with various PPTP servers including Microsoft.</_p>
   </description>
 
   <screenshots>
     <screenshot type="default">
-      <image width="800" 
height="619">https://git.gnome.org/browse/network-manager-pptp/plain/appdata/pptp.png</image>
+      <image width="800" 
height="498">https://git.gnome.org/browse/network-manager-pptp/plain/appdata/pptp.png</image>
     </screenshot>
     <screenshot>
       <caption>The advanced options dialog</caption>
-      <image width="800" 
height="498">https://git.gnome.org/browse/network-manager-pptp/plain/appdata/pptp-advanced.png</image>
+      <image width="800" 
height="619">https://git.gnome.org/browse/network-manager-pptp/plain/appdata/pptp-advanced.png</image>
     </screenshot>
   </screenshots>