With MySQL 3.23 and 4.0, the syntax 'LIMIT N, -1' is accepted, and returns
all the rows located after row N. This behavior, however, is not the
intended result, and defeats the purpose of LIMIT, which is to constrain
the size of a result set.

With MySQL 4.1 and later, this construct is correctly detected as a syntax
error.

This fix does not change the production code, and only adds a new test case
to improve test coverage in this area, to enforce in the test suite the
intended behavior.


mysql-test/r/select.result:
  Enforce that LIMIT N, -1 is illegal.
mysql-test/t/select.test:
  Enforce that LIMIT N, -1 is illegal.