This file is indexed.

/usr/share/kde4/apps/kconf_update/kwin_remove_effects.upd is in kde-window-manager-common 4:4.11.8-0ubuntu6.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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# This update file removes the effects snow, shadow and sharpen
# from the kconf settings

Id=kwin4.7_effects
File=kwinrc
Group=Plugins
RemoveKey=kwin4_effect_snowEnabled
RemoveKey=kwin4_effect_shadowEnabled
RemoveKey=kwin4_effect_sharpenEnabled