Update test/mavsdk_tests/mavsdk_preparing.cpp

test/mavsdk_tests/mavsdk_preparing.cpp

@@ -120,7 +120,7 @@ int main(int argc, char **argv)
 	if (command_set_param == command) {
 		//TODO: For some reason when we set the new value it sometimes takes several attempts to change a parameter.
 		//The reason is the bug of mavsdk lib.
-		//When we set one parameter many times, some time lib sends not the new but the previous value.
+		//When we set one parameter many times, sometimes the lib sends not the new but the previous value.
 		int attempt = 1;
 		const int max_attemp = 5;
 		const auto param_name = "SYS_AUTOSTART";