/usr/share/app-install/desktop/luminance-hdr:luminance-hdr.desktop is in app-install-data 14.04.0.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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X-AppInstall-Package=luminance-hdr
X-AppInstall-Popcon=47
X-AppInstall-Section=universe
Name=Luminance HDR
GenericName=HDR imaging tool
Categories=Graphics;RasterGraphics;Photography;Viewer;Qt;
Comment=Create and tonemap HDR images
Exec=luminance-hdr --gui %F
Icon=luminance-hdr
MimeType=image/x-dcraw;image/tiff;image/jpeg;image/png;image/x-exr;image/x-hdr;image/x-pfs;
StartupNotify=true
StartupWMClass=luminance-hdr
Terminal=false
Type=Application
X-DCOP-ServiceType=
X-KDE-SubstituteUID=false
X-KDE-Username=
#X-StandardInstall=false
X-Ubuntu-Gettext-Domain=app-install-data
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