libsemanage: silence -Wextra-semi-stmt warning

On Ubuntu 20.04, when building with clang -Werror -Wextra-semi-stmt
(which is not the default build configuration), the compiler reports:

      genhomedircon.c:742:67: error: empty expression statement has no
      effect; remove unnecessary ';' to silence this warning
      [-Werror,-Wextra-semi-stmt]
              const semanage_seuser_t **u2 = (const semanage_seuser_t **) arg2;;
                                                                               ^

Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>

libsemanage/src/genhomedircon.c

@@ -740,7 +740,7 @@ static int write_user_context(genhomedircon_settings_t * s, FILE * out,
 static int seuser_sort_func(const void *arg1, const void *arg2)
 {
 	const semanage_seuser_t **u1 = (const semanage_seuser_t **) arg1;
-	const semanage_seuser_t **u2 = (const semanage_seuser_t **) arg2;;
+	const semanage_seuser_t **u2 = (const semanage_seuser_t **) arg2;
 	const char *name1 = semanage_seuser_get_name(*u1);
 	const char *name2 = semanage_seuser_get_name(*u2);
 

libsemanage/tests/libsemanage-tests.c

@@ -41,13 +41,17 @@
 #include <stdlib.h>
 
 #define DECLARE_SUITE(name) \
-	suite = CU_add_suite(#name, name##_test_init, name##_test_cleanup); \
-	if (NULL == suite) { \
-		CU_cleanup_registry(); \
-		return CU_get_error(); } \
-	if (name##_add_tests(suite)) { \
-		CU_cleanup_registry(); \
-		return CU_get_error(); }
+	do { \
+		suite = CU_add_suite(#name, name##_test_init, name##_test_cleanup); \
+		if (NULL == suite) { \
+			CU_cleanup_registry(); \
+			return CU_get_error(); \
+		} \
+		if (name##_add_tests(suite)) { \
+			CU_cleanup_registry(); \
+			return CU_get_error(); \
+		} \
+	} while (0)
 
 static void usage(char *progname)
 {