Merge mysql.com:/home/hf/work/30284/my50-30284

into  mysql.com:/home/hf/work/30284/my51-30284


mysql-test/r/gis.result:
  Auto merged
mysql-test/r/subselect.result:
  Auto merged
mysql-test/t/gis.test:
  Auto merged
mysql-test/t/subselect.test:
  Auto merged
tests/mysql_client_test.c:
  Auto merged