[6.0] 795366627 Formally expose VSB_tofile in libvarnishapi

[Reza Naghibi]

commit 795366627ffdb0515c8e897a5f3d15623109cc56
Author: Dridi Boukelmoune <dridi.boukelmoune at gmail.com>
Date:   Wed Mar 4 10:27:38 2020 +0100

    Formally expose VSB_tofile in libvarnishapi
    
    Closes #3238
    
    Conflicts:
        lib/libvarnishapi/libvarnishapi.map

diff --git a/lib/libvarnishapi/libvarnishapi.map b/lib/libvarnishapi/libvarnishapi.map
index 4cc3b5050..30873af89 100644
--- a/lib/libvarnishapi/libvarnishapi.map
+++ b/lib/libvarnishapi/libvarnishapi.map
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2011-2017 Varnish Software AS
+ * Copyright (c) 2011-2020 Varnish Software AS
  * All rights reserved.
  *
  * Author: Tollef Fog Heen <tfheen at varnish-software.com>
@@ -140,3 +140,11 @@ LIBVARNISHAPI_2.0 {
     local:
 	*;
 };
+
+LIBVARNISHAPI_2.1 {
+    global:
+	# vsb.c
+	VSB_tofile;
+    local:
+	*;
+};
\ No newline at end of file