[dots] Fix typo in the documentation. Reported by Joe Hansen. Fixes #632728

[Fernando Herrera de las Heras <fherrera src gnome org>]

commit 6c009363916c7b5223fcfc2b048ee17cb67ab6d3
Author: Fernando Herrera <fherrera onirica com>
Date:   Sat Oct 30 17:00:00 2010 +0200

    Fix typo in the documentation. Reported by Joe Hansen. Fixes #632728

 help/C/format.page |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/help/C/format.page b/help/C/format.page
index ec64463..54900f8 100644
--- a/help/C/format.page
+++ b/help/C/format.page
@@ -6,6 +6,6 @@
 </info>
 <title>Output format</title>
 <p>You can use the Translation menu to change the translation table and the output format</p>
-<p>The table submenu allows you to select between all installed translation tables and to choose and external one. The format menu entry will show up a dialog to change the page number positions, the number of lines per page and the number of cells per line.</p>
+<p>The table submenu allows you to select between all installed translation tables and to choose an external one. The format menu entry will show up a dialog to change the page number positions, the number of lines per page and the number of cells per line.</p>
 <p>Any change in the translation options will update automatically the document</p>
 </page>