Use version.sh in manual builds

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26423 a1c6a512-1295-4272-9138-f99709370657
diff --git a/manual/Makefile.pdflatex b/manual/Makefile.pdflatex
index ee6c8bf..9e9fd28 100644
--- a/manual/Makefile.pdflatex
+++ b/manual/Makefile.pdflatex
@@ -6,6 +6,7 @@
 HTOPTS1 := rockbox-html,charset=utf-8,early_
 HTOPTS2 := " -utf8 -cmozhtf"
 HTOPTS3 := "-dhtml/ -cvalidate"
+VERSION=`$(TOOLSDIR)/version.sh $(ROOTDIR)`
 
 .PHONY: all cleaner buildmanual output