From f28971c95c809ca6c5b1a62ce2719aface56d899 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Tue, 16 Oct 2018 10:21:07 +0200
Subject: [PATCH] The localization label can also contain underscore char

---
 program/js/app.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/program/js/app.js b/program/js/app.js
index 671a1e13b..7d3811f6b 100644
--- a/program/js/app.js
+++ b/program/js/app.js
@@ -7894,7 +7894,7 @@ function rcube_webmail()
   // display a system message, list of types in common.css (below #message definition)
   this.display_message = function(msg, type, timeout, key)
   {
-    if (msg && msg.length && /^[a-z.]+$/.test(msg))
+    if (msg && msg.length && /^[a-z._]+$/.test(msg))
       msg = this.get_label(msg);
 
     // pass command to parent window