[gnome-terminal] Use en dash in user docs date range

[Ekaterina Gerasimova <egerasimov src gnome org>]

commit 27279a93659dbb13a90f21207507fae40dc562ee
Author: Ekaterina Gerasimova <kittykat3756 gmail com>
Date:   Mon Mar 24 18:42:46 2014 +0000

    Use en dash in user docs date range

 help/C/gs-tabs.page |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/help/C/gs-tabs.page b/help/C/gs-tabs.page
index 0a45a17..67dbba1 100644
--- a/help/C/gs-tabs.page
+++ b/help/C/gs-tabs.page
@@ -17,7 +17,7 @@
     <credit type="copyright editor">
       <name>Ekaterina Gerasimova</name>
       <email its:translate="no">kittykat3756 gmail com</email>
-      <years>2013-2014</years>
+      <years>2013–2014</years>
     </credit>
     <credit type="copyright editor">
       <name>Michael Hill</name>