updated for version 7.4.591
Problem:    test_listlbr_utf8 fails when the conceal feature is not available.
Solution:   Check for the conceal feature. (Kazunobu Kuriyama)
diff --git a/src/testdir/test_listlbr_utf8.in b/src/testdir/test_listlbr_utf8.in
index b3d05df..bb6350d 100644
--- a/src/testdir/test_listlbr_utf8.in
+++ b/src/testdir/test_listlbr_utf8.in
@@ -2,7 +2,7 @@
 
 STARTTEST
 :so small.vim
-:if !exists("+linebreak") | e! test.ok | w! test.out | qa! | endif
+:if !exists("+linebreak") || !has("conceal") | e! test.ok | w! test.out | qa! | endif
 :so mbyte.vim
 :if &enc !=? 'utf-8'|:e! test.ok|:w! test.out|qa!|endif
 :10new|:vsp|:vert resize 20
diff --git a/src/version.c b/src/version.c
index bef9b19..33f8a97 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    591,
+/**/
     590,
 /**/
     589,