patch 7.4.1574
Problem:    ":undo 0" does not work. (Florent Fayolle)
Solution:   Make it undo all the way. (closes #688)
diff --git a/src/testdir/test_alot.vim b/src/testdir/test_alot.vim
index 94ff8b1..bd74afc 100644
--- a/src/testdir/test_alot.vim
+++ b/src/testdir/test_alot.vim
@@ -4,6 +4,7 @@
 source test_assign.vim
 source test_cursor_func.vim
 source test_delete.vim
+source test_ex_undo.vim
 source test_expand.vim
 source test_feedkeys.vim
 source test_file_perm.vim
diff --git a/src/testdir/test_undolevels.vim b/src/testdir/test_undolevels.vim
index 427cece..7bb25ef 100644
--- a/src/testdir/test_undolevels.vim
+++ b/src/testdir/test_undolevels.vim
@@ -1,7 +1,5 @@
 " Tests for 'undolevels'
 
-set nocompatible viminfo+=nviminfo
-
 func FillBuffer()
   for i in range(1,13)
     put=i