Fix the autopkgtest. Ouch. Argh. Oof.

debian/changelog

+mbuffer (20200929+ds2-5) UNRELEASED; urgency=medium
+
+  * Brown paperbag upload: fix the autopkgtest.
+
+ -- Peter Pentchev <roam@debian.org>  Wed, 04 Nov 2020 11:55:16 +0200
+
 mbuffer (20200929+ds2-4) unstable; urgency=medium
 
   * Add the decrease-numblocks patch.

debian/tests/usr-tree

@@ -23,6 +23,7 @@ sed -e 's/check:.*test0/check: test0/;
 	s/mbuffer.md5:.*mbuffer/mbuffer.md5:/;
 	s/tapetest\.so:.*tapetest\.c.*/tapetest.so: tapetest.c/;
 	s/idev\.so:.*idev\.c.*/idev.so: idev.c/;
+	s/test\.md5: test\.tar.*/test.md5: test.tar/;
 	s/test6: mbuffer/test6:/;
 	s/test7: mbuffer/test7:/;
 	s/@TAR@/tar/;