Add version statement to hel-arabic.ly (issue 324460043 by address@hidden)

[beauleetienne0]

Reviewers: ,

Message:
Fixes a little oversight.

Description:
Add version statement to hel-arabic.ly

Fixes warning due to missing version statement. Must have been forgotten
in 2be5896dc7 ([#5172]).

Please review this at https://codereview.appspot.com/324460043/

Affected files (+1, -0 lines):
  M ly/hel-arabic.ly


Index: ly/hel-arabic.ly
diff --git a/ly/hel-arabic.ly b/ly/hel-arabic.ly
index  
1e6e865afcd5e7a9eb11fed3d02133049029ec34..890ae908b18345ab7216c6197a50e6212b9e4b57  
100644
--- a/ly/hel-arabic.ly
+++ b/ly/hel-arabic.ly
@@ -14,6 +14,7 @@
 %%  You should have received a copy of the GNU General Public License
 %%  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.

+\version "2.21.0"
 \language "arabic"

 %% set pitch names.