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);
+}
-static/cgit.png' alt='cgit logo'/></a></td>
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<div class='path'>path: <a href='/guix/log/?id=4b7917f2f3669e5ef34b4c2ef723fd596177f163'>root</a>/<a href='/guix/log/gnu?id=4b7917f2f3669e5ef34b4c2ef723fd596177f163'>gnu</a>/<a href='/guix/log/gnu/packages?id=4b7917f2f3669e5ef34b4c2ef723fd596177f163'>packages</a>/<a href='/guix/log/gnu/packages/patches?id=4b7917f2f3669e5ef34b4c2ef723fd596177f163'>patches</a>/<a href='/guix/log/gnu/packages/patches/cairo-CVE-2016-9082.patch?id=4b7917f2f3669e5ef34b4c2ef723fd596177f163'>cairo-CVE-2016-9082.patch</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/patches/cairo-CVE-2016-9082.patch?id=4b7917f2f3669e5ef34b4c2ef723fd596177f163&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2016-11-29 09:45:48 +0200'>2016-11-29</span></td><td><a href='/guix/commit/gnu/packages/patches/cairo-CVE-2016-9082.patch?id=c51d926c740f98883ce3332852e826f57fdf4566'>gnu: cairo: Fix CVE-2016-9082.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>