/usr/lib/R/site-library/rstudioapi/doc/ is in r-cran-rstudioapi 0.7-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/R/site-library/rstudioapi/doc/dialogs.R
/usr/lib/R/site-library/rstudioapi/doc/dialogs.Rmd
/usr/lib/R/site-library/rstudioapi/doc/dialogs.html
/usr/lib/R/site-library/rstudioapi/doc/document-manipulation.R
/usr/lib/R/site-library/rstudioapi/doc/document-manipulation.Rmd
/usr/lib/R/site-library/rstudioapi/doc/document-manipulation.html
/usr/lib/R/site-library/rstudioapi/doc/index.html
/usr/lib/R/site-library/rstudioapi/doc/introduction.Rmd
/usr/lib/R/site-library/rstudioapi/doc/introduction.html
/usr/lib/R/site-library/rstudioapi/doc/projects.R
/usr/lib/R/site-library/rstudioapi/doc/projects.Rmd
/usr/lib/R/site-library/rstudioapi/doc/projects.html
/usr/lib/R/site-library/rstudioapi/doc/r-session.R
/usr/lib/R/site-library/rstudioapi/doc/r-session.Rmd
/usr/lib/R/site-library/rstudioapi/doc/r-session.html
/usr/lib/R/site-library/rstudioapi/doc/terminal.R
/usr/lib/R/site-library/rstudioapi/doc/terminal.Rmd
/usr/lib/R/site-library/rstudioapi/doc/terminal.html