community/R: fix locales

fixes #8918

https://stackoverflow.com/questions/44143931/iconvlist-inconsistency-on-alpine-linux

community/R/APKBUILD

@@ -3,7 +3,7 @@
 # Maintainer: Jakub Jirutka <jakub@jirutka.cz>
 pkgname=R
 pkgver=4.0.2
-pkgrel=0
+pkgrel=1
 pkgdesc="Language and environment for statistical computing"
 url="https://www.r-project.org"
 arch="all !mips !mips64"
@@ -86,6 +86,12 @@ package() {
 		mv "$f" "$pkgdir"/etc/R/ && ln -sf /etc/R/$f $f
 	done
 	cd -
+
+	# Fix #8918
+	# R expects iconv -l to return whitespace-separated list of
+	# locales, our returns ', ' separated so it adds a , for every
+	# locale
+	sed -i 's/,//g' "$pkgdir"/usr/lib/R/library/utils/iconvlist
 }
 
 mathlib() {