patch 9.0.0944: 'cursorline' causes virtual text highlight to continue

Problem:    'cursorline' causes virtual text highlight to continue.
Solution:   Save and restore line_attr. (closes #11588)
diff --git a/src/version.c b/src/version.c
index f602fe3..b234cce 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    944,
+/**/
     943,
 /**/
     942,