Log Message:
(devel/R-rlang) Updated 0.4.7 to 0.4.9

# rlang 0.4.9

## Breaking changes

* Dropped support for the R 3.2 series.

## New features

* `inject()` evaluates its argument with `!!`, `!!!`, and `{{`
  support.

* New `enquo0()` and `enquos0()` operators for defusing function
  arguments without automatic injection (unquotation).

* `format_error_bullets()` is no longer experimental. The `message`
  arguments of `abort()`, `warn()`, and `inform()` are automatically
  passed to that function to make it easy to create messages with
  regular, info, and error bullets. See `?format_error_bullets` for
  more information.

* New `zap_srcref()` function to recursively remove source references
  from functions and calls.

* A new compat file for the zeallot operator `%<-%` is now available
  in the rlang repository.

* New `%<~%` operator to define a variable lazily.

* New `env_browse()` and `env_is_browsed()` functions. `env_browse()`
  is equivalent to evaluating `browser()` within an environment. It
  sets the environment to be persistently browsable (or unsets it if
  `value = FALSE` is supplied).

* Functions created from quosures with `as_function()` now print in a
  more user friendly way.

* New `rlang_print_backtrace` C callable for debugging from C
  interpreters (#1059).

## Bugfixes and improvements

* The `.data` pronoun no longer skips functions (#1061). This solves a
  dplyr issue involving rowwise data frames and list-columns of
  functions (tidyverse/dplyr#5608).

* `as_data_mask()` now intialises environments of the correct size to
  improve efficiency (#1048).

* `eval_bare()`, `eval_tidy()` (#961), and `with_handlers()` (#518)
  now propagate visibility.

* `cnd_signal()` now ignores `NULL` inputs.

* Fixed bug that prevented splicing a named empty vector with the
  `!!!` operator (#1045).

* The exit status of is now preserved in non-interactive sessions when
  `entrace()` is used as an `options(error = )` handler (#1052,
  rstudio/bookdown#920).

* `next` and `break` are now properly deparsed as nullary operators.

# rlang 0.4.8

* Backtraces now include native stacks (e.g. from C code) when the
  [winch](https://r-prof.github.io/winch/) package is installed and
  `rlang_trace_use_winch` is set to `TRUE` (@krlmlr).

* Compatibility with upcoming testthat 3 and magrittr 2 releases.

* `get_env()` now returns the proper environment with primitive
  functions, i.e. the base namespace rather than the base environment
  (r-lib/downlit#32).

* `entrace()` no longer handles non-rlang errors that carry a
  backtrace. This improves compatibility with packages like callr.

* Backtraces of unhandled errors are now displayed without truncation
  in non-interactive sessions (#856).

* `is_interactive()` no longer consults "rstudio.notebook.executing"
  option (#1031).