Errors after setup .lintr in the HOME directory

Here is the error after setup .lintr file in the HOME directory on MacBook. The error highlight always on the first character of the first line.

Failed to run diagnostics: callr subprocess failed: Malformed config file, ensure it ends in a newline
  Invalid DCF format.
Regular lines must have a tag.
Offending lines start with:
  )lintr

[eitsupi]

That format is not correct. (That is, the wiki description is not correct.) It is in the form of a dcf, which is correctly written as follows:

linters: with_defaults(
  object_usage_linter = NULL,
  commented_code_linter = NULL
  )

or

linters: with_defaults(
  object_usage_linter = NULL,
  commented_code_linter = NULL)

See if you can read the file with R’s read.dcf() function.

read.dcf(".lintr")                                                                 
#> Error in read.dcf(".lintr") : Line starting ') ...' is malformed!

[eitsupi]

would not give me an error with read.dcf but still wouldn’t work, I had to actually add an explicit new line:

The reason is that a line without a newline character (LF) at the end is not considered a line. https://stackoverflow.com/questions/729692/why-should-text-files-end-with-a-newline

See https://github.com/r-lib/lintr/issues/886.