[gnumeric] Fuzzing: permit fuzzing lotus files too.

[Morten Welinder <mortenw src gnome org>]

commit 1c35747673e7f8cc7fe7583b7024ce75f7bcfd9e
Author: Morten Welinder <terra gnome org>
Date:   Sat Nov 15 10:05:30 2014 -0500

    Fuzzing: permit fuzzing lotus files too.

 test/zzufit |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/test/zzufit b/test/zzufit
index 12aaeff..310a0f1 100755
--- a/test/zzufit
+++ b/test/zzufit
@@ -155,7 +155,7 @@ sub determine_file_type {
 
     return undef unless -r $file && -f _;
 
-    if ($file =~ /\.xls$/) {
+    if ($file =~ /\.(xls|wb[23])$/) {
        return $file_type{$file} = 'raw';
     }