/usr/lib/R/site-library/beeswarm/INDEX is in r-cran-beeswarm 0.2.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 | beeswarm                Bee swarm plot
breast                  Lymph-node-negative primary breast tumors
bxplot                  Plot quantile lines
swarmx                  Adjust 1-d data to separate coincident points
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