[swell-foop] Use 41~alpha instead of 41.alpha

[Robert Roth <robertroth src gnome org>]

commit 9d7858f6f721ef48784fcfc1a677f4f3549e0331
Author: Robert Roth <robert roth off gmail com>
Date:   Sun Sep 19 04:55:47 2021 +0300

    Use 41~alpha instead of 41.alpha

 data/org.gnome.SwellFoop.appdata.xml.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/org.gnome.SwellFoop.appdata.xml.in b/data/org.gnome.SwellFoop.appdata.xml.in
index 07c8476..1984727 100644
--- a/data/org.gnome.SwellFoop.appdata.xml.in
+++ b/data/org.gnome.SwellFoop.appdata.xml.in
@@ -46,7 +46,7 @@
         </ul>
       </description>
     </release>
-    <release version="41.alpha" date="2021-07-10" type="development">
+    <release version="41~alpha" date="2021-07-10" type="development">
     <description>
         <p>Overview of changes in swell-foop 41.alpha</p>
         <ul>