[master] make sure src/bin/auth/tests/testdata is in dist tarball

configure.ac

@@ -1018,6 +1018,7 @@ AC_CONFIG_FILES([Makefile
                  src/bin/msgq/tests/Makefile
                  src/bin/auth/Makefile
                  src/bin/auth/tests/Makefile
+                 src/bin/auth/tests/testdata/Makefile
                  src/bin/auth/benchmarks/Makefile
                  src/bin/ddns/Makefile
                  src/bin/ddns/tests/Makefile

src/bin/auth/tests/Makefile.am

+SUBDIRS = testdata .
+
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += -I$(top_builddir)/src/bin # for generated spec_config.h header
 AM_CPPFLAGS += -I$(top_builddir)/src/lib/dns -I$(top_srcdir)/src/bin