/usr/lib/s9fes/help/read-file is in scheme9 2010.11.13-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 | S9 LIB  (read-file)             ==>  list
        (read-file input-port)  ==>  list
Read a text file from an input port, return a list containing
one string for each line read. When no INPUT-PORT is specified,
read the current input port.
(with-input-from-file "lib/read-file.scm" read-file)
  ==>  [lots of lines]
 |