strip off most of the path name within the html zip so that the zip only
contains html/ and its subdirectories


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10290 a1c6a512-1295-4272-9138-f99709370657
diff --git a/manual/Makefile.pdflatex b/manual/Makefile.pdflatex
index eecc4ef..582fa21 100644
--- a/manual/Makefile.pdflatex
+++ b/manual/Makefile.pdflatex
@@ -19,5 +19,6 @@
 	@cp -r $(OBJDIR)/html $(OBJDIR)/../
 
 htmlzip: buildhtml 
-	@zip -r $(OBJDIR)/rockbox-manual.zip $(OBJDIR)/html
-	@cp $(OBJDIR)/rockbox-manual.zip $(OBJDIR)/../
+	@(cd $(OBJDIR); \
+	zip -r $(OBJDIR)/rockbox-manual.zip html; \
+	cp $(OBJDIR)/rockbox-manual.zip $(OBJDIR)/../ )