Manual fixes to merge of fix for Bug #6682 to 4.1.

sql/sql_class.h:
  update tmp_disable_binlog() and reenable_binlog() macros
mysql-test/r/insert_select.result:
  Handle results that differ from 4.0 to 4.1

mysql-test/r/insert_select.result

@@ -85,10 +85,10 @@ create table t1(a int);
 insert into t1 values(1),(1);
 reset master;
 create table t2(unique(a)) select a from t1;
-Duplicate entry '1' for key 1
+ERROR 23000: Duplicate entry '1' for key 1
 show binlog events;
 Log_name	Pos	Event_type	Server_id	Orig_log_pos	Info
-master-bin.001	4	Start	1	4	Server ver: VERSION, Binlog ver: 3
+master-bin.000001	4	Start	1	4	Server ver: VERSION, Binlog ver: 3
 drop table t1;
 create table t1 (a int not null);
 create table t2 (a int not null);

sql/sql_class.h

@@ -1092,14 +1092,11 @@ class THD :public ilink,
   void end_statement();
 };
 
-# define tmp_disable_binlog(A)                                          \
-  ulong save_options= (A)->options, save_master_access= (A)->master_access; \
-  (A)->options&= ~OPTION_BIN_LOG;                                       \
-  (A)->master_access|= SUPER_ACL; /* unneeded in 4.1 */                 
-
-#define reenable_binlog(A)                      \
-  (A)->options= save_options;                   \
-  (A)->master_access= save_master_access;       
+#define tmp_disable_binlog(A)       \
+  ulong save_options= (A)->options; \
+  (A)->options&= ~OPTION_BIN_LOG;
+
+#define reenable_binlog(A)          (A)->options= save_options;
 
 /* Flags for the THD::system_thread (bitmap) variable */
 #define SYSTEM_THREAD_DELAYED_INSERT 1