T: increase max number of args in an event and make the define more private

T_MAX_ARGS was 16 and some people start to use the T machinery with
more than 16 values. So be it. Let tracers be friendly and accept 32.
(More commits to follow for full support.)

Also why is T_MAX_ARGS in T_defs.h when it's only used by event.h?
Hum?

common/utils/T/T_defs.h

@@ -36,9 +36,6 @@
 /* comment (and recompile everything) to not send time in events */
 #define T_SEND_TIME
 
-/* maximum number of arguments for the T macro */
-#define T_MAX_ARGS 16
-
 /* maximum size of a message - increase if needed */
 #define T_BUFFER_MAX (1024*64*4)
 

common/utils/T/tracer/event.h

@@ -7,6 +7,9 @@
 #include <time.h>
 #endif
 
+/* maximum number of arguments for the T macro */
+#define T_MAX_ARGS 32
+
 enum event_arg_type {
   EVENT_INT,
   EVENT_ULONG,