Required such that macOS doesn't crash in get_error_data (via call stack from guestfs_launch)

From 5b121bc8bb8f1fadf835b4af30cbb9c9e95af258 Mon Sep 17 00:00:00 2001
From: Daria Phoebe Brashear <dariaphoebe@auristor.com>
Date: Tue, 4 Feb 2020 20:25:10 -0500
Subject: [PATCH] libhandle: initialize error_data_list_lock

when a handle is allocated, the error_data_list_lock must be initialized
---
 lib/handle.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/handle.c b/lib/handle.c
index f61fdbcd3..99a8b8848 100644
--- a/lib/handle.c
+++ b/lib/handle.c
@@ -88,6 +88,7 @@ guestfs_create_flags (unsigned flags, ...)
   if (!g) return NULL;
 
   gl_recursive_lock_init (g->lock);
+  gl_lock_init (g->error_data_list_lock);
 
   g->state = CONFIG;
 
@@ -176,6 +177,7 @@ guestfs_create_flags (unsigned flags, ...)
   free (g->append);
   guestfs_int_free_error_data_list (g);
   gl_tls_key_destroy (g->error_data);
+  gl_lock_destroy (g->error_data_list_lock);
   gl_recursive_lock_destroy (g->lock);
   free (g);
   return NULL;
--
2.21.1 (Apple Git-122.3)