[interchange] Update WHATSNEW

[Gert van der Spoel]

commit ce8ce403924195867a896f860de320ad882c44d3
Author: Gert van der Spoel <gert at 3edge.com>
Date:   Mon Feb 28 09:19:12 2011 +0100

    Update WHATSNEW

 WHATSNEW-5.7 |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/WHATSNEW-5.7 b/WHATSNEW-5.7
index b2c6430..4159d1d 100644
--- a/WHATSNEW-5.7
+++ b/WHATSNEW-5.7
@@ -30,6 +30,8 @@ Core
   in the usertrack log (and possibly other places) if they are allowed to remain
   in the source.
 
+* Remove newline from errormessages to be able to parse locale of it
+
 Tags
 ----
 * Allow sorting of forum entries.