Fixed many compiler warnings related to print being disabled

tmk_core/common/print.h

@@ -2,17 +2,17 @@
 /* Very basic print functions, intended to be used with usb_debug_only.c
  * http://www.pjrc.com/teensy/
  * Copyright (c) 2008 PJRC.COM, LLC
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
- * 
+ *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
- * 
+ *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
@@ -91,9 +91,9 @@ void print_set_sendchar(int8_t (*print_sendchar_func)(uint8_t));
 
 #else   /* NO_PRINT */
 
-#define xprintf
-#define print
-#define println
+#define xprintf(fmt, ...)
+#define print(s)
+#define println(s)
 #define print_set_sendchar(func)
 #define print_dec(data)
 #define print_decs(data)