/usr/share/doc/gammu-doc/html/project/ is in gammu-doc 1.31.90-1.
This file is owned by root:root, with mode 0o755.
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/usr/share/doc/gammu-doc/html/project/about.html
/usr/share/doc/gammu-doc/html/project/coding-style.html
/usr/share/doc/gammu-doc/html/project/contributing.html
/usr/share/doc/gammu-doc/html/project/directories.html
/usr/share/doc/gammu-doc/html/project/documentation.html
/usr/share/doc/gammu-doc/html/project/index.html
/usr/share/doc/gammu-doc/html/project/install.html
/usr/share/doc/gammu-doc/html/project/localization.html
/usr/share/doc/gammu-doc/html/project/motivation.html
/usr/share/doc/gammu-doc/html/project/roadmap.html
/usr/share/doc/gammu-doc/html/project/testing.html
/usr/share/doc/gammu-doc/html/project/versioning.html