Temporary directory name upon temporary directory name. Just in
case. When in doubt, add one more temporary directory name layer.

workdir/unxmacxx.pro/installation/LibreOffice_Dev/dmg/install/en-US_inprogress_temp.62979/./LibreOfficeDev_4.1.0.0.alpha0_MacOS_x86-64/LibreOfficeDev.app

Couldn't quickly figure out how to construct the
"LibreOfficeDev_4.1.0.0.alpha0_MacOS_x86-64" part so just use a
wildcard * for that for now;) There won't be any other directories
there anyway, as far as I know.

Change-Id: If950d4cdfe3f7b0663f1b6fbd62185ca8284dd7f