patch 8.1.0584: with search CTRL-L does not pick up composing characters

Problem:    With search CTRL-L does not pick up composing characters.
Solution:   Check for composing characters. (Christian Brabandt, closes #3682)
            [code change was accidentally included in 8.1.0579]
diff --git a/src/version.c b/src/version.c
index 1c85bf1..a25f262 100644
--- a/src/version.c
+++ b/src/version.c
@@ -800,6 +800,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    584,
+/**/
     583,
 /**/
     582,