[PUSHED] Replace String with OUString (unotools)

[Noel Power (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/2864

Approvals:
  Noel Power: Verified; Looks good to me, approved


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Gerrit-MessageType: merged
Gerrit-Change-Id: I9a0677cb36805d0a27514824c937901f73fee1c8
Gerrit-PatchSet: 3
Gerrit-Project: core
Gerrit-Branch: master
Gerrit-Owner: Christina Roßmanith <ChrRossmanith at web.de>
Gerrit-Reviewer: Noel Power <noel.power at suse.com>