Log Message:
(devel/R-pkgbuild) Updated 1.2.0 to 1.3.1

# pkgbuild 1.3.1

* Accept Rtools40 for R 4.2, it works well, as long as the PATH
  includes both `${RTOOLS40_HOME}/usr/bin` and
  `${RTOOLS40_HOME}/ucrt64/bin`.  E.g. `~/.Renviron` should contain
  now ```
  PATH="${RTOOLS40_HOME}\usr\bin;${RTOOLS40_HOME}\ucrt64\bin;${PATH}"
  ``` to make Rtools40 work with both R 4.2.x (devel currently) and R
  4.1.x and R 4.0.x.

# pkgbuild 1.3.0

* pkgbuild now supports Rtools 4.2.

* pkgbuild now returns the correct path for R 3.x (#96).

* `build()` now always returns the path of the built package (#108).

* pkgbuild output now looks better in `.Rmd` documents and in general
  in non-dynamic terminals. You can also force dynamic and non-dynamic
  output now (#64).

* pkgbuild does not build the PDF manual now if `pdflatex` is not
  installed, even if `manual = TRUE` (#123).

# pkgbuild 1.2.1

* Gábor Csárdi is now the maintainer.

* `build_setup_source` now considerers both command-line build
  arguments, as well as parameters `vignettes` or `manual` when
  conditionally executing flag-dependent behaviors (@dgkf, #120)