fix Alvaro's email address (followup 1469903)

jef-n · jef-n · commit 694e5da16e1e · 2014-02-22T12:29:19.000+01:00
diff --git a/doc/AUTHORS b/doc/AUTHORS
@@ -55,4 +55,4 @@ Salvatore Larosa	<lrssvtml at gmail dot com>
 Nyall Dawson	<nyall dot dawson at gmail dot com>
 Vinayan Parameswaran	<vinayan123 at gmail dot com>
 Chris Crook	<ccrook at linz dot govt dot nz>
-Alvaro Huarte	<ahuarte at yahoo dot es>
+Alvaro Huarte	<ahuarte47 at yahoo dot es>
