Fixed problems detected by pushbuild

mysql-test/t/log_state.test:
  Move disconnect last to avoid sporadic failures in test because 'Quit' command appeared in general log
plugin/daemon_example/daemon_example.c:
  Define __attribute__ to fix compiler error with not gcc compilers
sql-common/client.c:
  Fixed spelling error
sql/sql_parse.cc:
  Added comment

mysql-test/t/log_state.test

@@ -37,7 +37,6 @@ set session long_query_time=1;
 select sleep(2);
 --replace_column 1 TIMESTAMP 2 USER_HOST 3 QUERY_TIME
 select * from mysql.slow_log;
-disconnect con1;
 connection default;
 show global variables
 where Variable_name = 'log' or Variable_name = 'log_slow_queries' or
@@ -121,3 +120,8 @@ drop table t1;
 select * from mysql.general_log;
 
 --enable_ps_protocol
+
+#
+# Cleanup (must be done last to avoid delayed 'Quit' message in general log)
+#
+disconnect con1;

plugin/daemon_example/daemon_example.c

@@ -19,11 +19,11 @@
 #include <mysql/plugin.h>
 
 /*
-#if !defined(__attribute__) && (defined(__cplusplus) || !defined(__GNUC__)  || __GNUC__ == 2 && __GNUC_MINOR__ < 8)
+  Disable __attribute__() on non-gcc compilers.
+*/
+#if !defined(__attribute__) && !defined(__GNUC__)
 #define __attribute__(A)
 #endif
-*/
-
 
 
 /*

sql-common/client.c

@@ -682,7 +682,7 @@ cli_advanced_command(MYSQL *mysql, enum enum_server_command command,
   mysql->info=0;
   mysql->affected_rows= ~(my_ulonglong) 0;
   /*
-    We don't want to clear the protocol buffer on COM_QUIT, beacsue if
+    We don't want to clear the protocol buffer on COM_QUIT, because if
     the previous command was a shutdown command, we may have the
     response for the COM_QUIT already in the communication buffer
   */

sql/sql_parse.cc

@@ -413,7 +413,11 @@ int check_user(THD *thd, enum enum_server_command command,
         }
       }
 
-      /* Why logging is performed before all checks've passed? */
+      /*
+        Log the command before authentication checks, so that the user can
+        check the log for the tried login tried and also to detect
+        break-in attempts.
+      */
       general_log_print(thd, command,
                         (thd->main_security_ctx.priv_user ==
                          thd->main_security_ctx.user ?