Make test work with upstream cbehave
(tinydir bundles a modified version)

diff --git a/tests/file_open_test.c b/tests/file_open_test.c
index 3e659bc..9f6f88d 100644
--- a/tests/file_open_test.c
+++ b/tests/file_open_test.c
@@ -19,4 +19,7 @@ FEATURE(file_open, "File open")
 	SCENARIO_END
 FEATURE_END
 
-CBEHAVE_RUN("File open:", TEST_FEATURE(file_open))
+int main(void) {
+	cbehave_feature _cfeatures[] = {{feature_idx(file_open)}};
+	return cbehave_runner("File open:", _cfeatures);
+}
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<tr><td><span title='2023-03-07 21:14:57 +0100'>2023-03-07</span></td><td><a href='/guix/commit/po/doc/guix-manual.pt_BR.po?id=d333958763b0840c4cd895601b079b68358a6a46'>nls: Update translations.</a></td><td>Julien Lepiller</td></tr>
<tr><td><span title='2023-01-05 08:14:55 +0100'>2023-01-05</span></td><td><a href='/guix/commit/po/doc/guix-manual.pt_BR.po?id=dc7eb6f07ae982b4c9d083cfb10f72cb031c0424'>nls: Update translations.</a><span class='msg-avail'>...<span class='msg-tooltip'>* po/guix/ka.po: New file.
* po/guix/LINGUAS: Add it.
* po/packages/uk.po: New file.
* po/packages/LINGUAS: Add it.
</span></span></td><td>Julien Lepiller</td></tr>
<tr><td><span title='2022-12-15 00:15:36 +0100'>2022-12-15</span></td><td><a href='/guix/commit/po/doc/guix-manual.pt_BR.po?id=047ae5c3458d03bea4926e6cc1760bcfce1e2ab4'>doc: Use VM image file name consistently.</a><span class='msg-avail'>...<span class='msg-tooltip'>Previously, what "/tmp/qemu-image" refers to could be unclear at first.

* doc/guix.texi (Running Guix in a VM): Use the original image file
name instead of /tmp/qemu-image.
* po/doc/guix-manual.de.po, po/doc/guix-manual.es.po,
po/doc/guix-manual.fr.po, po/doc/guix-manual.pt_BR.po,
po/doc/guix-manual.ru.po, po/doc/guix-manual.zh_CN.po: Adjust
accordingly.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-12-04 23:15:02 +0100'>2022-12-04</span></td><td><a href='/guix/commit/po/doc/guix-manual.pt_BR.po?id=29a09fa5e46347ca223b849c47198f82cf6df271'>nls: Update translations.</a><span class='msg-avail'>...<span class='msg-tooltip'>po/packages/vi.po: New file.
po/packages/LINGUAS: Add it.
</span></span></td><td>Julien Lepiller</td></tr>
<tr><td><span title='2022-11-04 10:56:38 +0100'>2022-11-04</span></td><td><a href='/guix/commit/po/doc/guix-manual.pt_BR.po?id=a65ce9dd500460af4f97e7398fb35dd817f4c677'>nls: Update translations.</a><span class='msg-avail'>...<span class='msg-tooltip'>* po/guix/lt.po: New file.
* po/guix/LINGUAS: Add lt.
</span></span></td><td>Julien Lepiller</td></tr>