few compile-time bugs fixed

include/mysql.h:
  fixed compile-time bug
sql/sql_class.cc:
  fixed compile-time bug
sql/sql_class.h:
  fixed compile-time bug

include/mysql.h

@@ -229,7 +229,7 @@ typedef struct st_mysql
   my_bool	reconnect;		/* set to 1 if automatic reconnect */
 
   /* session-wide random string */
-  char	        scramble[max(SCRAMBLE_LENGTH,SCRAMBLE_LENGTH_323)+1];
+  char	        scramble[SCRAMBLE_LENGTH+1];
 
  /*
    Set if this is the original connection, not a master or a slave we have

sql/sql_class.cc

@@ -139,7 +139,7 @@ THD::THD():user_time(0), is_fatal_error(0),
   set_query_id=1;
   db_access=NO_ACCESS;
   version=refresh_version;			// For boot
-  *scramble= *scramble_323= '\0';
+  *scramble= '\0';
 
   init();
   /* Initialize sub structures */

sql/sql_class.h

@@ -547,7 +547,7 @@ public:
   DYNAMIC_ARRAY user_var_events;
 
   /* scramble - random string sent to client on handshake */
-  char	     scramble[max(SCRAMBLE_LENGTH, SCRAMBLE_LENGTH_323)+1];
+  char	     scramble[SCRAMBLE_LENGTH+1];
 
   uint8	     query_cache_type;		// type of query cache processing
   bool       slave_thread;