/usr/share/librecad/library/elektro/dev/ is in librecad-data 2.1.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/librecad/library/elektro/dev/dev1.dxf
/usr/share/librecad/library/elektro/dev/dev10.dxf
/usr/share/librecad/library/elektro/dev/dev11.dxf
/usr/share/librecad/library/elektro/dev/dev12.dxf
/usr/share/librecad/library/elektro/dev/dev13.dxf
/usr/share/librecad/library/elektro/dev/dev14.dxf
/usr/share/librecad/library/elektro/dev/dev15.dxf
/usr/share/librecad/library/elektro/dev/dev16.dxf
/usr/share/librecad/library/elektro/dev/dev17.dxf
/usr/share/librecad/library/elektro/dev/dev18.dxf
/usr/share/librecad/library/elektro/dev/dev19.dxf
/usr/share/librecad/library/elektro/dev/dev2.dxf
/usr/share/librecad/library/elektro/dev/dev20.dxf
/usr/share/librecad/library/elektro/dev/dev21.dxf
/usr/share/librecad/library/elektro/dev/dev22.dxf
/usr/share/librecad/library/elektro/dev/dev23.dxf
/usr/share/librecad/library/elektro/dev/dev24.dxf
/usr/share/librecad/library/elektro/dev/dev25.dxf
/usr/share/librecad/library/elektro/dev/dev26.dxf
/usr/share/librecad/library/elektro/dev/dev27.dxf
/usr/share/librecad/library/elektro/dev/dev28.dxf
/usr/share/librecad/library/elektro/dev/dev29.dxf
/usr/share/librecad/library/elektro/dev/dev3.dxf
/usr/share/librecad/library/elektro/dev/dev30.dxf
/usr/share/librecad/library/elektro/dev/dev31.dxf
/usr/share/librecad/library/elektro/dev/dev32.dxf
/usr/share/librecad/library/elektro/dev/dev33.dxf
/usr/share/librecad/library/elektro/dev/dev34.dxf
/usr/share/librecad/library/elektro/dev/dev35.dxf
/usr/share/librecad/library/elektro/dev/dev36.dxf
/usr/share/librecad/library/elektro/dev/dev37.dxf
/usr/share/librecad/library/elektro/dev/dev38.dxf
/usr/share/librecad/library/elektro/dev/dev39.dxf
/usr/share/librecad/library/elektro/dev/dev4.dxf
/usr/share/librecad/library/elektro/dev/dev40.dxf
/usr/share/librecad/library/elektro/dev/dev5.dxf
/usr/share/librecad/library/elektro/dev/dev6.dxf
/usr/share/librecad/library/elektro/dev/dev7.dxf
/usr/share/librecad/library/elektro/dev/dev8.dxf
/usr/share/librecad/library/elektro/dev/dev9.dxf