Issue #14541: Merged addition of test/sndhdrdata to Makefile.pre.in from 3.2.

diff --cc Makefile.pre.in
index a77b8b4114008fe1425ee14f1f4f8fedf6a1cad4,9cc15c963e100a1e7cc58e23ccb08f794437434b..71be3acfb9edded1db2113ed687da3fe2894c516
--- 1/Makefile.pre.in
--- 2/Makefile.pre.in
+++ b/Makefile.pre.in
@@@ -952,10 -918,10 +952,10 @@@ LIBSUBDIRS=     tkinter tkinter/test tkinte
                tkinter/test/test_ttk site-packages test \
                test/capath test/data \
                test/cjkencodings test/decimaltestdata test/xmltestdata \
-               test/subprocessdata \
+               test/subprocessdata test/sndhdrdata \
                test/tracedmodules test/encoded_modules \
 -              concurrent concurrent/futures encodings \
 -              email email/mime email/test email/test/data \
 +              collections concurrent concurrent/futures encodings \
 +              email email/mime test/test_email test/test_email/data \
                html json test/json_tests http dbm xmlrpc \
                sqlite3 sqlite3/test \
                logging csv wsgiref urllib \