tests: check for recently-fixed bug

* tests/exclude17.at: New file.
* tests/testsuite.at (AT_CHECK_TIMESTAMP): Add it.

tests/exclude17.at

@@ -0,0 +1,35 @@
+# Process this file with autom4te to create testsuite. -*- Autotest -*-
+#
+# Test suite for GNU tar.
+# Copyright 2013-2022 Free Software Foundation, Inc.
+
+# This file is part of GNU tar.
+
+# GNU tar is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+
+# GNU tar is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+AT_SETUP([--exclude-vcs-ignores memory allocation])
+AT_KEYWORDS([exclude exclude17])
+
+AT_TAR_CHECK([
+mkdir dir
+cd dir
+echo '*.o' >.cvsignore
+tar -cf - --exclude-vcs-ignores . | tar -tf -
+],
+[0],
+[./
+./.cvsignore
+])
+
+AT_CLEANUP

tests/testsuite.at

@@ -312,6 +312,7 @@ m4_include([exclude13.at])
 m4_include([exclude14.at])
 m4_include([exclude15.at])
 m4_include([exclude16.at])
+m4_include([exclude17.at])
 
 AT_BANNER([Deletions])
 m4_include([delete01.at])