patch 7.4.977
Problem:    'linebreak' does not work properly when using "space" in
            'listchars'.
Solution:   (Hirohito Higashi, Christian Brabandt)
diff --git a/src/testdir/test_listlbr.ok b/src/testdir/test_listlbr.ok
index ff30b46..b32a549 100644
--- a/src/testdir/test_listlbr.ok
+++ b/src/testdir/test_listlbr.ok
@@ -52,3 +52,11 @@
 Test 11: using block replace mode after wrapping
 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa0aaa
 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa0aaa
+Test 12: set linebreak list listchars=space:_,tab:>-,tail:-,eol:$
+a aaaaaaaaaaaaaaaaaaaaaa	a 
+
+Test 12: set linebreak list listchars=space:_,tab:>-,tail:-,eol:$
+a_                  
+aaaaaaaaaaaaaaaaaaaa
+aa>-----a-$         
+~