Better approach to fixing the TabVoice glissando problem. (issue4438092)

[mtsolo]

Reviewers: ,

Message:
A better approach to the TabVoice glissando problem, although I'm still
not quite sure why it works, but it seems to work!

Cheers,
MS

Description:
Better approach to fixing the TabVoice glissando problem.

Please review this at http://codereview.appspot.com/4438092/

Affected files:
  M lily/tab-note-heads-engraver.cc


Index: lily/tab-note-heads-engraver.cc
diff --git a/lily/tab-note-heads-engraver.cc  
b/lily/tab-note-heads-engraver.cc
index  
958c85d3e7d5b55bdecd2c33d5a19c1483c40c23..adf1f8c14bdd0b528d3214ba0bae34691a1557df  
100644
--- a/lily/tab-note-heads-engraver.cc
+++ b/lily/tab-note-heads-engraver.cc
@@ -112,7 +112,7 @@ Tab_note_heads_engraver::process_music ()
   vsize index;

   if (string_fret_finger != SCM_EOL)
-    for (vsize i = 0; i < fret_count; i++)
+    for (vsize i = fret_count; i--;)
       {
        note_entry = scm_list_ref (string_fret_finger, scm_from_int (i));
        string_number = scm_car (note_entry);