[gnome-contacts] metainfo: Caption cannot end in '.'

[Niels De Graef <nielsdg src gnome org>]

commit edf044a6ba039b43572c2443d561180f1684e17d
Author: Maximiliano Sandoval R <msandova gnome org>
Date:   Sat Sep 24 12:01:05 2022 +0200

    metainfo: Caption cannot end in '.'
    
    See https://github.com/flathub/org.gnome.Contacts/pull/72#issuecomment-1256927055

 data/org.gnome.Contacts.appdata.xml.in.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/org.gnome.Contacts.appdata.xml.in.in b/data/org.gnome.Contacts.appdata.xml.in.in
index 98bdedfd..6397e21d 100644
--- a/data/org.gnome.Contacts.appdata.xml.in.in
+++ b/data/org.gnome.Contacts.appdata.xml.in.in
@@ -19,7 +19,7 @@
   </description>
   <screenshots>
     <screenshot type="default">
-      <caption>Contacts with no contacts.</caption>
+      <caption>Contacts with no contacts</caption>
       <image>https://static.gnome.org/appdata/gnome-43/contacts/contacts-empty.png</image>
     </screenshot>
     <screenshot>