/usr/share/doc/r-cran-tibble/tests/testthat/output/trunc_mat/zero-cols_unk-5-30.txt is in r-cran-tibble 1.4.1-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | # A tibble: ?? x 0
<body created by pillar>
# ... with at least 5 rows
# total
|