Fix for BUG#47671 - wrong character-set after upgrade from 5.1.34 to 5.1.39

mysql client displays wrong character-set of server. When a user changes the
charset of a server, mysql client 'status' command displays wrong charset but
the command "SHOW VARIABLES LIKE "%charset%" displayed correct charset results.
The problem is only with the mysql client's 'status' command output.

In mysql client, the method mysql_store_lazy_result() returns 0 for
success and non-zero for failure. The method com_status() was using this method
wrongly. Fixed all such instances according to return value of the method 
mysql_store_lazy_result().

client/mysql.cc

@@ -4335,7 +4335,7 @@ com_status(String *buffer __attribute__((unused)),
     Don't remove "limit 1",
     it is protection againts SQL_SELECT_LIMIT=0
   */
-  if (mysql_store_result_for_lazy(&result))
+  if (!mysql_store_result_for_lazy(&result))
   {
     MYSQL_ROW cur=mysql_fetch_row(result);
     if (cur)
@@ -4379,7 +4379,7 @@ com_status(String *buffer __attribute__((unused)),
     if (mysql_errno(&mysql) == CR_SERVER_GONE_ERROR)
       return 0;
   }
-  if (mysql_store_result_for_lazy(&result))
+  if (!mysql_store_result_for_lazy(&result))
   {
     MYSQL_ROW cur=mysql_fetch_row(result);
     if (cur)

mysql-test/r/bug47671.result

+#
+# Bug#47671 - wrong character-set after upgrade from 5.1.34 to 5.1.39
+#
+# Extract only charset information from 'status' command output using regex
+--------------
+
+Server characterset:	utf8
+Db     characterset:	utf8
+Client characterset:	utf8
+Conn.  characterset:	utf8
+
+--------------
+

mysql-test/t/bug47671-master.opt

+--default-character-set=utf8 --skip-character-set-client-handshake

mysql-test/t/bug47671.test

+--echo #
+--echo # Bug#47671 - wrong character-set after upgrade from 5.1.34 to 5.1.39
+--echo #
+--echo # Extract only charset information from 'status' command output using regex
+--replace_regex /.*mysql.*// /Connection.*// /Current.*//  /SSL.*// /Using.*// /Server version.*// /Protocol.*// /UNIX.*// /Uptime.*// /Threads.*//
+--exec $MYSQL -u root test -e "status";