main/gettext: add provider_priority for cmd:envsubst

main/gettext/APKBUILD

@@ -3,7 +3,7 @@
 # Maintainer: Carlo Landmeter <clandmeter@alpinelinux.org>
 pkgname=gettext
 pkgver=0.21
-pkgrel=2
+pkgrel=3
 pkgdesc="GNU locale utilities"
 url="https://www.gnu.org/software/gettext/gettext.html"
 arch="all"
@@ -20,6 +20,8 @@ source="https://ftp.gnu.org/gnu/gettext/gettext-$pkgver.tar.xz
 	musl-realpath.patch
 	"
 
+provider_priority=100 # highest (other provider of cmd:envsubst is testing/envsubst)
+
 # secfixes:
 #   0.20.1-r0:
 #     - CVE-2018-18751