unit-tests: Fix apidoc for libtest

src/libstrongswan/tests/test_runner.h

@@ -13,6 +13,16 @@
  * for more details.
  */
 
+/**
+ * @defgroup libtest libtest
+ *
+ * @defgroup test_runner test_runner
+ * @{ @ingroup libtest
+ */
+
+#ifndef TEST_RUNNER_H_
+#define TEST_RUNNER_H_
+
 #include "test_suite.h"
 
 #include <plugins/plugin_feature.h>
@@ -53,8 +63,10 @@ struct test_configuration_t {
  *
  * The configs array must be terminated with a NULL element.
  *
- * @param configs		test suite constructors with dependencies
+ * @param config		test suite constructors with dependencies
  * @param init_cb		init/deinit callback
  * @return				test result, EXIT_SUCCESS if all tests passed
  */
 int test_runner_run(test_configuration_t config[], test_runner_init_t init_cb);
+
+#endif /** TEST_RUNNER_H_ @}*/