Changed the compiler switch behaviour for printf (default: disabled).

Macro UNITY_EXCLUDE_PRINT_FORMATTED changed to UNITY_INCLUDE_PRINT_FORMATTED.
Enable printf via "-DUNITY_INCLUDE_PRINT_FORMATTED" compiler option.

src/unity.c

@@ -141,8 +141,8 @@ void UnityPrint(const char* string)
 }
 
 /*-----------------------------------------------*/
-#ifndef UNITY_EXCLUDE_PRINT_FORMATTED
-void UnityPrintFormatted(const char* format, ... )
+#ifdef UNITY_INCLUDE_PRINT_FORMATTED
+void UnityPrintFormatted(const char* format, ...)
 {
     const char* pch = format;
     va_list va;
@@ -251,7 +251,7 @@ void UnityPrintFormatted(const char* format, ... )
 
     va_end(va);
 }
-#endif /* ! UNITY_EXCLUDE_PRINT_FORMATTED */
+#endif /* ! UNITY_INCLUDE_PRINT_FORMATTED */
 
 /*-----------------------------------------------*/
 void UnityPrintLen(const char* string, const UNITY_UINT32 length)

src/unity_internals.h

@@ -23,7 +23,7 @@
 #include <stddef.h>
 #endif
 
-#ifndef UNITY_EXCLUDE_PRINT_FORMATTED
+#ifdef UNITY_INCLUDE_PRINT_FORMATTED
 #include <stdarg.h>
 #endif
 
@@ -496,8 +496,8 @@ void UnityDefaultTestRun(UnityTestFunction Func, const char* FuncName, const int
 
 void UnityPrint(const char* string);
 
-#ifndef UNITY_EXCLUDE_PRINT_FORMATTED
-void UnityPrintFormatted(const char* format, ... );
+#ifdef UNITY_INCLUDE_PRINT_FORMATTED
+void UnityPrintFormatted(const char* format, ...);
 #endif
 
 void UnityPrintLen(const char* string, const UNITY_UINT32 length);