[gnome-documents/gnome-3-26] preview: Use 'var' for exported constant

[Debarshi Ray <debarshir src gnome org>]

commit 63fba5aaeedc9faadc6a1b7214868a60979a3732
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Dec 7 14:32:31 2017 +0100

    preview: Use 'var' for exported constant
    
    This avoids warnings with GJS 1.50.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=785568

 src/preview.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/preview.js b/src/preview.js
index 2cf75c8..a4975dc 100644
--- a/src/preview.js
+++ b/src/preview.js
@@ -547,7 +547,7 @@ const PreviewFullscreenToolbar = new Lang.Class({
 });
 
 const _AUTO_HIDE_TIMEOUT = 2;
-const PREVIEW_NAVBAR_MARGIN = 30;
+var PREVIEW_NAVBAR_MARGIN = 30;
 
 var PreviewNavControls = new Lang.Class({
     Name: 'PreviewNavControls',