initramfs-tools-core multiarch dns problem

Hi,

in x86_64 multiarch environment the hook-functions -> add_dns()
copy i386 libdns instead of 64bit one.

in add_dns() i replace
for f in "$d"/libc.so.?; do [ -f "$f" ] && break; done
with
for f in "$d"/libc.so; do [ -f "$f" ] && break; done
to fix the problem

regards

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: initramfs-tools-core 0.136ubuntu6 [modified: usr/share/initramfs-tools/hook-functions]
ProcVersionSignature: Ubuntu 5.4.0-24.28-generic 5.4.30
Uname: Linux 5.4.0-24-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Sat Apr 18 21:10:51 2020
InstallationDate: Installed on 2020-04-18 (0 days ago)
InstallationMedia: Kubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200401)
PackageArchitecture: all
SourcePackage: initramfs-tools
UpgradeStatus: No upgrade log present (probably fresh install)