/usr/share/app-install/desktop/ksystemlog:kde4__ksystemlog.desktop is in app-install-data 0.12.04.4.
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=ksystemlog
X-AppInstall-Popcon=1272
X-AppInstall-Section=main
Name=KSystemLog
Categories=Qt;KDE;System;Monitor;
X-KDE-SubstituteUID=true
Exec=ksystemlog %i -caption "%c"
Icon=utilities-log-viewer
Type=Application
X-DocPath=ksystemlog/index.html
Comment=System log viewer tool
Terminal=false
GenericName=System Log Viewer
X-Ubuntu-Gettext-Domain=app-install-data
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