[gnumeric] t6150: make this work, more or less, without schema present.

[Morten Welinder <mortenw src gnome org>]

commit 715707fe5deb6e7e8f4a5bc6acb813f9e0edc070
Author: Morten Welinder <terra gnome org>
Date:   Thu Apr 16 17:57:34 2015 -0400

    t6150: make this work, more or less, without schema present.

 test/t6150-ods-syntax.pl |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/test/t6150-ods-syntax.pl b/test/t6150-ods-syntax.pl
index 874fbe1..c4d584b 100755
--- a/test/t6150-ods-syntax.pl
+++ b/test/t6150-ods-syntax.pl
@@ -116,7 +116,7 @@ foreach my $src (@sources) {
            my $cmd = "$unzip -p $tmp $member | $this_checker --noout -";
            print STDERR "# $cmd\n" if $GnumericTest::verbose;
            my $out = `$cmd 2>&1`;
-           if ($out !~ /^- validates$/) {
+           if ($out ne '' && $out !~ /^- validates$/) {
                print STDERR "While checking $member from $tmp:\n";
                &GnumericTest::dump_indented ($out);
                $nbad++;