patch 7.4.2228
Problem:    Test files have inconsistant modelines.
Solution:   Don't set 'tabstop' to 2, use 'sts' and 'sw'.
diff --git a/src/testdir/test_increment_dbcs.vim b/src/testdir/test_increment_dbcs.vim
index e1b6632..dea405c 100644
--- a/src/testdir/test_increment_dbcs.vim
+++ b/src/testdir/test_increment_dbcs.vim
@@ -27,4 +27,4 @@
   call assert_equal([0, 1, 10, 0], getpos('.'))
 endfunc
 
-" vim: shiftwidth=2 expandtab
+" vim: shiftwidth=2 sts=2 expandtab