/usr/share/perl5/Path/IsDev/Heuristic/ is in libpath-isdev-perl 1.001002-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/Path/IsDev/Heuristic/Changelog.pm
/usr/share/perl5/Path/IsDev/Heuristic/DevDirMarker.pm
/usr/share/perl5/Path/IsDev/Heuristic/META.pm
/usr/share/perl5/Path/IsDev/Heuristic/MYMETA.pm
/usr/share/perl5/Path/IsDev/Heuristic/Makefile.pm
/usr/share/perl5/Path/IsDev/Heuristic/TestDir.pm
/usr/share/perl5/Path/IsDev/Heuristic/Tool/
/usr/share/perl5/Path/IsDev/Heuristic/Tool/Dzil.pm
/usr/share/perl5/Path/IsDev/Heuristic/Tool/MakeMaker.pm
/usr/share/perl5/Path/IsDev/Heuristic/Tool/ModuleBuild.pm
/usr/share/perl5/Path/IsDev/Heuristic/VCS/
/usr/share/perl5/Path/IsDev/Heuristic/VCS/Git.pm
/usr/share/perl5/Path/IsDev/HeuristicSet/Basic.pm