LIBSUBDIRS: Add test/data so it gets installed and test_email.py can

pass.  Closes SF # 485080

Makefile.pre.in

@@ -580,8 +580,8 @@ maninstall:
 PLATDIR=	plat-$(MACHDEP)
 MACHDEPS=	$(PLATDIR)
 XMLLIBSUBDIRS=  xml xml/dom xml/parsers xml/sax
-LIBSUBDIRS=	lib-old lib-tk site-packages test test/output encodings \
-		email compiler hotshot \
+LIBSUBDIRS=	lib-old lib-tk site-packages test test/output test/data \
+		encodings email compiler hotshot \
 		distutils distutils/command $(XMLLIBSUBDIRS) curses $(MACHDEPS)
 libinstall:	$(PYTHON) $(srcdir)/Lib/$(PLATDIR)
 	@for i in $(SCRIPTDIR) $(LIBDEST); \