patch 8.1.1073: space in number column is on wrong side with 'rightleft' set

Problem:    Space in number column is on wrong side with 'rightleft' set.
Solution:   Move the space to the text side.  Add a test.
diff --git a/src/version.c b/src/version.c
index e5559c7..1921131 100644
--- a/src/version.c
+++ b/src/version.c
@@ -776,6 +776,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1073,
+/**/
     1072,
 /**/
     1071,