[Svn] [roundcube/roundcubemail] e99fb3: Add tests for contacts export action, fix PHP8 issues

[Aleksander Machniak]

  Branch: refs/heads/master
  Home:   https://github.com/roundcube/roundcubemail
  Commit: e99fb3968da1284cd8f36b19b181738c06e6c4a4
      https://github.com/roundcube/roundcubemail/commit/e99fb3968da1284cd8f36b19b181738c06e6c4a4
  Author: Aleksander Machniak <alec at alec.pl>
  Date:   2020-11-02 (Mon, 02 Nov 2020)

  Changed paths:
    M program/actions/contacts/export.php
    M program/include/rcmail.php
    M program/include/rcmail_output.php
    M program/include/rcmail_output_html.php
    M program/lib/Roundcube/rcube.php
    M program/lib/Roundcube/rcube_addressbook.php
    M tests/ActionTestCase.php
    M tests/Actions/Contacts/Export.php
    M tests/OutputHtmlMock.php
    M tests/OutputJsonMock.php
    M tests/StderrMock.php
    M tests/bootstrap.php
    M tests/phpunit.xml

  Log Message:
  -----------
  Add tests for contacts export action, fix PHP8 issues