Fix missing newline at end of files

Examples/test-suite/c/c_backend_cpp_exception_runme.c

@@ -11,4 +11,4 @@ int main()
 	assert(c_backend_cpp_exception_checkVal_get() == 2);
 
 	return 0;
-}
+}

Examples/test-suite/c/c_backend_cpp_natural_std_string_runme.c

@@ -15,4 +15,4 @@ int main()
 	free(myComposedString);
 
 	return 0;
-}
+}

Examples/test-suite/c_backend_cpp_exception.i

@@ -22,4 +22,4 @@
   void throwSomeUnknownException(void) {
     throw SomeUnkownException();
   }
-%}
+%}

Examples/test-suite/c_backend_cpp_natural_std_string.i

@@ -10,4 +10,4 @@
 		someString += appendedString;
 		return someString;
 	}
-%}
+%}