(Two-pass vertical spacing): add documentation for two-pass spacing

[lilypond.git] / ly / lilypond-book-preamble.ly

diff --git a/ly/lilypond-book-preamble.ly b/ly/lilypond-book-preamble.ly
index 3b4d46aeb4f13a0d16d8206e3f7d7966df06359d..75bce0045d870446977fb0f003b6d342e62ce52e 100644 (file)
--- a/ly/lilypond-book-preamble.ly
+++ b/ly/lilypond-book-preamble.ly
@@ -1,4 +1,5 @@
 
+\version "2.9.9"
 
 #(set! toplevel-score-handler print-score-with-defaults)
 #(set! toplevel-music-handler