--- a/Plugins/VcsPlugins/vcsMercurial/HgDiffDialog.py	Tue Sep 06 19:47:39 2011 +0200
+++ b/Plugins/VcsPlugins/vcsMercurial/HgDiffDialog.py	Wed Sep 07 18:08:56 2011 +0200
@@ -342,7 +342,7 @@
         
         eol = e5App().getObject("Project").getEolString()
         try:
-            f = open(fname, "w", encoding="utf-8")
+            f = open(fname, "w", encoding="utf-8", newline="")
             f.write(eol.join(self.contents.toPlainText().splitlines()))
             f.close()
         except IOError as why: