core_4964_test.py fail on Firebird debug build

[aafemt]

Debug build of Firebird sends the real auth errors to client in addition to logging it into firebird.log. Because of this the test's output is not as expected. It is a false negative.

>       assert act.clean_stdout == act.clean_expected_stdout
E       assert
E           Statement failed, SQLSTATE = 08006
E           Error occurred during login, please check server firebird.log for details
E         + -file is not a valid database

tests\bugs\core_4964_test.py:116: AssertionError

[pavel-zotov]

Fixed, see notes in bugs/core_4964_test.py