main/lua-stringy: add lua 5.3 and use install_if

main/lua-stringy/APKBUILD

 # Contributor: Natanael Copa <ncopa@alpinelinux.org>
 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 
-_luaversions="5.1 5.2"
+_luaversions="5.1 5.2 5.3"
 pkgname=lua-stringy
 pkgver=0.4
-pkgrel=3
+pkgrel=4
 pkgdesc="Lua string utility library"
 url="https://github.com/brentp/lua-projects/"
 arch="all"
@@ -16,7 +16,6 @@ subpackages=""
 source="lua-projects-$pkgver.tar.gz::https://github.com/brentp/lua-projects/archive/$pkgver.tar.gz"
 
 for _v in $_luaversions; do
-	depends="$depends lua$_v-stringy"
 	makedepends="$makedepends lua$_v-dev"
 	subpackages="$subpackages lua$_v-stringy:split_${_v/./_}"
 done
@@ -54,8 +53,9 @@ package() {
 }
 
 _split() {
-	local d=usr/lib/lua
-	replaces="$pkgname"
+	local d=usr/lib/lua _ver=$1
+	pkgdesc="$pkgdesc for Lua $_ver"
+	install_if="lua$_ver $pkgname=$pkgver-r$pkgrel"
 	depends=
 	mkdir -p "$subpkgdir/$d" || return 1
 	mv "$pkgdir/$d/$1" "$subpkgdir/$d"