updated for version 7.4.646
Problem:    ":bufdo" may start at a deleted buffer.
Solution:   Find the first not deleted buffer. (Shane Harper)
diff --git a/src/testdir/test_command_count.ok b/src/testdir/test_command_count.ok
index 8fdbc77..e74155e 100644
--- a/src/testdir/test_command_count.ok
+++ b/src/testdir/test_command_count.ok
@@ -34,5 +34,5 @@
 argdo: c d e
 windo: 2 3 4
 bufdo: 2 3 4 5 6 7 8 9 10 15
-bufdo: 3 4 5 6 7
+bufdo: 4 5 6 7
 tabdo: 2 3 4