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:
  Fix for BUG#47671 - wrong character-set after upgrade from 5.1.34 to 5.1.39
  
  Fix com_status() method to use mysql_store_lazy_result() properly.
mysql-test/r/bug47671.result:
  Fix for BUG#47671 - wrong character-set after upgrade from 5.1.34 to 5.1.39
  
  Testcase for BUG#47671
mysql-test/t/bug47671-master.opt:
  Fix for BUG#47671 - wrong character-set after upgrade from 5.1.34 to 5.1.39
  
  Testcase for BUG#47671
mysql-test/t/bug47671.test:
  Fix for BUG#47671 - wrong character-set after upgrade from 5.1.34 to 5.1.39
  
  Testcase for BUG#47671