main/cryptsetup: fix openrc service to not mention gentoo package group

there is no such thing as app-crypt/gnupg in Alpine Linux, it is gnupg.

app-crypt is a gentoo package group

main/cryptsetup/APKBUILD

@@ -2,7 +2,7 @@
 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=cryptsetup
 pkgver=2.3.4
-pkgrel=0
+pkgrel=1
 pkgdesc="Userspace setup tool for transparent encryption of block devices using the Linux 2.6 cryptoapi"
 url="https://gitlab.com/cryptsetup/cryptsetup"
 arch="all"
@@ -62,4 +62,4 @@ libs() {
 sha512sums="a0a4981ca7294d6f0568bc9465e78ee1781ad73fe77e8daa0bbe67693534f02d3510e6fba9f76749b90ce7533bc9ac96dd27b73d733f8051e9560a3b4196ca3c  cryptsetup-2.3.4.tar.gz
 dc896fdb7697d01443a168819f01af02db00a9de75589f062a1ebbfc0bc185b6d2109b18352309c41b818e3ad89609dcea3660d6f3cda890de825f053f94de97  flush-stdout.patch
 74422d5e1614b43af894ea01da1ea80d805ec7f77981cbb80a6b1a4becad737a8825d7269812499095a7f50d39fa7da5bf4e4edae63529b1fe87b9176943a733  dmcrypt.confd
-81dad61cdecf1dc529b26eb3cdc15979a582c876b01268f88e7a71c8fae6911137c03bfa63fee64e064e5fb31f673610be27ecab9fc432229f13e7040698bd5c  dmcrypt.initd"
+a3ca3e648749136ee724692b61488cd855f118eb93435942c2b04964a34fe49d0f0da4ef64cd2531c1c0f650e77808cf5d802789fd7664398248ead668bb35e5  dmcrypt.initd"

main/cryptsetup/dmcrypt.initd

@@ -191,7 +191,7 @@ dm_crypt_execute() {
 		else
 			ewarn "${source} will not be decrypted ..."
 			einfo "Reason: cannot find gpg application."
-			einfo "You have to install app-crypt/gnupg first."
+			einfo "You have to install gnupg first."
 			einfo "If you have /usr on its own partition, try copying gpg to /bin ."
 		fi
 	else