patch 8.0.1168: wrong highlighting with combination of match and 'cursorline'

Problem:    wrong highlighting with combination of match and 'cursorline'.
Solution:   Use "line_attr" when appropriate. (Ozaki Kiichi, closes #2111)
            But don't highlight more than one character.
diff --git a/src/version.c b/src/version.c
index 3874320..a129ec9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1168,
+/**/
     1167,
 /**/
     1166,