clang-tidy fix mathlib headers and format

src/modules/uORB/uORBManager.hpp

@@ -364,7 +364,7 @@ public:
 	/**
 	 * Gets the uORB Communicator instance.
 	 */
-	uORBCommunicator::IChannel *get_uorb_communicator(void);
+	uORBCommunicator::IChannel *get_uorb_communicator();
 
 	/**
 	 * Utility method to check if there is a remote subscriber present

src/modules/uORB/uORB_tests/uORBTest_UnitTest.hpp

@@ -86,7 +86,7 @@ private:
 	// Disallow copy
 	UnitTest(const uORBTest::UnitTest &) {};
 	static int pubsubtest_threadEntry(char *const argv[]);
-	int pubsublatency_main(void);
+	int pubsublatency_main();
 
 	static int pub_test_multi2_entry(char *const argv[]);
 	int pub_test_multi2_main();
@@ -133,7 +133,7 @@ int uORBTest::UnitTest::latency_test(orb_id_t T, bool print)
 		return test_fail("orb_advertise failed (%i)", errno);
 	}
 
-	char *const args[1] = { NULL };
+	char *const args[1] = { nullptr };
 
 	pubsubtest_print = print;
 	pubsubtest_passed = false;