[vte] pty: spawn: Mask vte additions to GSpawnFlags

[Christian Persch <chpe src gnome org>]

commit ca76aa7678655a0da430a9127a77f7c003bb4a77
Author: Christian Persch <chpe src gnome org>
Date:   Mon Apr 27 20:49:04 2020 +0200

    pty: spawn: Mask vte additions to GSpawnFlags

 src/pty.cc | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)
---
diff --git a/src/pty.cc b/src/pty.cc
index 81483dbc..e80d7941 100644
--- a/src/pty.cc
+++ b/src/pty.cc
@@ -431,16 +431,8 @@ Pty::spawn(char const* directory,
                 return false;
         }
 
-        spawn_flags |= G_SPAWN_DO_NOT_REAP_CHILD;
-
-        /* We do NOT support this flag. If you want to have some FD open in the child
-         * process, simply use a child setup function that unsets the CLOEXEC flag
-         * on that FD.
-         */
-        spawn_flags &= ~G_SPAWN_LEAVE_DESCRIPTORS_OPEN;
-
         inherit_envv = (spawn_flags & VTE_SPAWN_NO_PARENT_ENVV) == 0;
-        spawn_flags &= ~VTE_SPAWN_NO_PARENT_ENVV;
+        spawn_flags &= ~(VTE_SPAWN_NO_PARENT_ENVV | VTE_SPAWN_NO_SYSTEMD_SCOPE | 
VTE_SPAWN_REQUIRE_SYSTEMD_SCOPE);
 
         /* add the given environment to the childs */
         envp2 = __vte_pty_merge_environ (envv, directory, inherit_envv);