[PUSHED] Calc sort: Use method GetSortKeyCount from SortParam

[Markus Mohrhard (via Code Review)]

Hi,

Thank you for your patch!  It has been merged to LibreOffice.

If you are interested in details, please visit

    https://gerrit.libreoffice.org/3816

Approvals:
  Markus Mohrhard: Verified; Looks good to me, approved


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To view, visit https://gerrit.libreoffice.org/3816
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Gerrit-MessageType: merged
Gerrit-Change-Id: I4500ba71abeba5fe8293cea22b10fd910e46059f
Gerrit-PatchSet: 2
Gerrit-Project: core
Gerrit-Branch: master
Gerrit-Owner: Albert Thuswaldner <albert.thuswaldner at gmail.com>
Gerrit-Reviewer: Markus Mohrhard <markus.mohrhard at googlemail.com>