dev-R/xfun: add 0.31, drop 0.30

Signed-off-by: Alessandro Barbieri <lssndrbarbieri@gmail.com>

dev-R/xfun/xfun-0.31.ebuild

@@ -0,0 +1,34 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit R-packages
+
+DESCRIPTION='Supporting Functions for Package maintained by Yihui Xie'
+HOMEPAGE="
+	https://cran.r-project.org/package=xfun
+	https://github.com/yihui/xfun
+"
+
+KEYWORDS="~amd64"
+LICENSE='MIT'
+
+SUGGESTED_PACKAGES="
+	dev-R/testit
+	dev-R/parallel
+	virtual/codetools
+	dev-R/rstudioapi
+	>=dev-R/tinytex-0.30
+	dev-R/mime
+	dev-R/markdown
+	dev-R/knitr
+	dev-R/htmltools
+	dev-R/remotes
+	dev-R/pak
+	dev-R/rhub
+	dev-R/renv
+	dev-R/curl
+	dev-R/jsonlite
+	dev-R/rmarkdown
+"