ps-modify1 used the user variables @1, @2, @100 set within ps_query and 
           ps_modify. That architecture was wrong, because the dependence
           of ps_modify1 on ps_query and ps_modify makes the test script
           maintenance and the use of these test cases during bug fixing/
           debugging of single sub test cases very uncomfortable.
Therefore these user variables (@1, @2, @100) are also set within ps-modify1.

The result files of the test cases ps_2myisam, ps_3innodb, ps_4heap, ps_6bdb,
ps_7ndb will be affected by that change and show 3 additional lines, but
nothing else will change.    


mysql-test/include/ps_modify1.inc:
  Initialization of three user variables, with values derived from ps_query
  and ps_modify
mysql-test/r/ps_2myisam.result:
  updated result set
mysql-test/r/ps_3innodb.result:
  updated result set
mysql-test/r/ps_4heap.result:
  updated result sset
mysql-test/r/ps_6bdb.result:
  updated result set
mysql-test/r/ps_7ndb.result:
  updated result set