Fix missing new line in matfaust.Faust.disp output due to a recent change in...

Fix missing new line in matfaust.Faust.disp output due to a recent change in C++ to_string (c647a625).

wrapper/matlab/src/faust_disp.hpp

@@ -10,6 +10,6 @@ void faust_disp(const mxArray **prhs, const int nrhs, mxArray **plhs, const int
 	//core_ptr->display(); // doesn't work on windows,
 	// matlab terminal doesn't receive the mex lib std output
 	// we must use mexPrintf() to display content
-	mexPrintf(core_ptr->to_string().c_str());
+	mexPrintf((core_ptr->to_string()+"\r\n").c_str());
 }