[gnumeric] git: ignore directory to store downloaded schema files.

[Morten Welinder <mortenw src gnome org>]

commit 186ade49d746a883913dd469ba09806f0a8454f5
Author: Morten Welinder <terra gnome org>
Date:   Wed Apr 25 22:42:05 2018 -0400

    git: ignore directory to store downloaded schema files.

 test/.gitignore |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/test/.gitignore b/test/.gitignore
index 3d6878d..96f398c 100644
--- a/test/.gitignore
+++ b/test/.gitignore
@@ -11,6 +11,7 @@ zzufit.log
 test-suite.log
 ooxml-schema
 ods-schema
+xmllint-extra
 
 # We don't want to ignore spreadsheet files here.
 !*.gnumeric