Also changing group of .well-known directory

le.sh

@@ -538,9 +538,9 @@ issue() {
       mkdir -p "$wellknown_path"
       echo -n "$keyauthorization" > "$wellknown_path/$token"
 
-      webroot_owner=$(stat -c '%U' $Le_Webroot)
-      _debug "Changing owner of .well-known to $webroot_owner"
-      chown -R $webroot_owner. "$Le_Webroot/.well-known"
+      webroot_owner=$(stat -c '%U:%G' $Le_Webroot)
+      _debug "Changing owner/group of .well-known to $webroot_owner"
+      chown -R $webroot_owner "$Le_Webroot/.well-known"
 
     fi
     wellknown_url="http://$d/.well-known/acme-challenge/$token"