void: make xrsync synchronize the folder with a glob

fish/void-repo

@@ -9,7 +9,7 @@ end
 
 function xrsync -d "Upload voidlinux package repository"
 	rsync $argv -azvh --delete --progress \
-		"$XBPS_HOSTDIR"/binpkgs/ \
+		"$XBPS_HOSTDIR"/binpkgs/{*.{xbps,xbps.sig},*-repodata} \
 		"$_agw_secret_void_copy_dir"
 end