/usr/share/lintian/overrides/libapache2-mod-mapcache is in libapache2-mod-mapcache 1.6.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | # False positive, dependency set by dh_apache2
libapache2-mod-mapcache: apache2-module-depends-on-real-apache2-package apache2-bin
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