Revert change of revision 1.251: "test for setXQUERY_LOGDIR and setSQL_LOGDIR (as XQUERY_LOGDIR and SQL_LOGDIR may correctly not be defined jet)", thus fixing the problem that tst100 and tstvoid don't work.
Revert change of revision 1.251: "test for setXQUERY_LOGDIR and
setSQL_LOGDIR (as XQUERY_LOGDIR and SQL_LOGDIR may correctly not be
defined jet)", thus fixing the problem that tst100 and tstvoid don't
work.

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb