CONF inclusion test: Add VMS specific tests

We want to see that VMS syntax paths are treated correctly.
Reviewed-by: NTim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5587)

test/recipes/90-test_includes.t

@@ -10,8 +10,16 @@ setup("test_includes");
 plan skip_all => "test_includes doesn't work without posix-io"
     if disabled("posix-io");
 
-plan tests => 3;                # The number of tests being performed
+plan tests =>                   # The number of tests being performed
+    3
+    + ($^O eq "VMS" ? 2 : 0);
 
 ok(run(test(["conf_include_test", data_file("includes.cnf")])), "test directory includes");
 ok(run(test(["conf_include_test", data_file("includes-file.cnf")])), "test file includes");
+if ($^O eq "VMS") {
+    ok(run(test(["conf_include_test", data_file("vms-includes.cnf")])),
+       "test directory includes, VMS syntax");
+    ok(run(test(["conf_include_test", data_file("vms-includes-file.cnf")])),
+       "test file includes, VMS syntax");
+}
 ok(run(test(["conf_include_test", data_file("includes-broken.cnf"), "f"])), "test broken includes");

test/recipes/90-test_includes_data/vms-includes-file.cnf

+#
+# Example configuration file using includes.
+#
+
+.include vms-includes.cnf

test/recipes/90-test_includes_data/vms-includes.cnf

+#
+# Example configuration file using includes.
+#
+
+.include [.conf-includes]