rename trap_Printf() to trap_Print() in the game module, as that function has nothing to do with printf()-like formatting

From /dev/humancontroller.

code/game/g_main.c

@@ -244,7 +244,7 @@ void QDECL G_Printf( const char *fmt, ... ) {
 	Q_vsnprintf (text, sizeof(text), fmt, argptr);
 	va_end (argptr);
 
-	trap_Printf( text );
+	trap_Print( text );
 }
 
 void QDECL G_Error( const char *fmt, ... ) {