deskutils/xdg-desktop-portal: Improve the patch a bit.

Returning NULL from parse_app_info_from_flatpak_info() makes more sense, as
we don't yet have any nothing of a "containerized" applications.

Sponsored by:	Serenity Cybersecurity, LLC

deskutils/xdg-desktop-portal/Makefile

 PORTNAME=	xdg-desktop-portal
 PORTVERSION=	1.18.2
+PORTREVISION=	1
 CATEGORIES=	deskutils wayland
 
 MAINTAINER=	arrowd@FreeBSD.org

deskutils/xdg-desktop-portal/files/patch-zzz-disable_flatpak_and_snap → deskutils/xdg-desktop-portal/files/patch-src_xdp-utils.c

@@ -10,25 +10,23 @@ to run firefox using the KDE file dialogs.
 
 > GTK_USE_PORTAL=1 firefox
 
---- src/xdp-utils.c.patched	2021-07-22 16:25:27.756116000 +0200
-+++ src/xdp-utils.c	2021-07-22 16:30:51.814245000 +0200
-@@ -630,6 +630,11 @@
-   g_autoptr(XdpAppInfo) app_info = NULL;
-   g_autoptr(GError) local_error = NULL;
- 
-+// On FreeBSD the main use of the xdg-portal is to be able to use
-+// "native" file dialogs, say the KDE file dialogs in firefox.
-+// There is no support for the application package mechanisms like
-+// flatpak and snap yet.
+--- src/xdp-utils.c.orig	2023-11-22 21:48:20 UTC
++++ src/xdp-utils.c
+@@ -587,6 +587,7 @@ parse_app_info_from_flatpak_info (int pid, GError **er
+ static XdpAppInfo *
+ parse_app_info_from_flatpak_info (int pid, GError **error)
+ {
 +#ifndef __FreeBSD__
-   app_info = parse_app_info_from_flatpak_info (pid, &local_error);
-   if (app_info == NULL && local_error)
-     {
-@@ -646,6 +651,7 @@
-           return NULL;
-         }
-     }
-+#endif
+   g_autofree char *root_path = NULL;
+   int root_fd = -1;
+   int info_fd = -1;
+@@ -689,6 +690,9 @@ parse_app_info_from_flatpak_info (int pid, GError **er
+   app_info->u.flatpak.keyfile = g_steal_pointer (&metadata);
+ 
+   return g_steal_pointer (&app_info);
++#else
++  return NULL;
++#endif // __FreeBSD__
+ }
  
-   if (app_info == NULL)
-     app_info = xdp_app_info_new_host ();
+ int