Create mode does not persist after reboot

[Guilherme T Maeoka]

Command `grep ^\s*\$FileCreateMode /etc/rsyslog.conf /etc/rsyslog.d/*.conf` returns `/etc/rsyslog.conf:$FileCreateMode 0640`, but logfiles are created with read permission for others.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: rsyslog 8.2001.0-1ubuntu1.1
ProcVersionSignature: Ubuntu 5.13.0-35.40~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-35-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Mar 16 16:22:35 2022
InstallationDate: Installed on 2021-10-16 (151 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
SourcePackage: rsyslog
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.rsyslog.conf: 2022-03-16T15:49:11.564719