Errors shown in PS-3791 are still showing in the journalctl

root@xenial:~# service mysql status
● mysql.service - Percona Server
   Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
   Active: active (running) since Tue 2018-02-20 09:31:36 UTC; 5s ago
  Process: 4276 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS)
  Process: 4265 ExecStartPre=/usr/bin/ps_mysqld_helper (code=exited, status=0/SUCCESS)
  Process: 4223 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, status=0/SUCCESS)
 Main PID: 4279 (mysqld)
    Tasks: 28
   Memory: 149.3M
      CPU: 1.293s
   CGroup: /system.slice/mysql.service
           └─4279 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid

Feb 20 09:31:35 xenial mysql-systemd-start[4223]: ERROR: ld.so: object '0' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
Feb 20 09:31:35 xenial mysql-systemd-start[4223]: ERROR: ld.so: object '0' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
Feb 20 09:31:35 xenial mysql-systemd-start[4223]: ERROR: ld.so: object '0' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
Feb 20 09:31:35 xenial mysql-systemd-start[4223]: ERROR: ld.so: object '0' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
Feb 20 09:31:35 xenial mysql-systemd-start[4223]: ERROR: ld.so: object '0' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
Feb 20 09:31:35 xenial ps_mysqld_helper[4265]: ERROR: ld.so: object '0' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
Feb 20 09:31:35 xenial ps_mysqld_helper[4265]: ERROR: ld.so: object '0' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
Feb 20 09:31:35 xenial ps_mysqld_helper[4265]: ERROR: ld.so: object '0' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
Feb 20 09:31:35 xenial mysqld[4276]: ERROR: ld.so: object '0' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
Feb 20 09:31:36 xenial systemd[1]: Started Percona Server.

root@xenial:~# /vagrant/dp.sh
ii  libperconaserverclient20:amd64     5.7.21-20-1.xenial                         amd64        Percona Server database client library
ii  percona-server-client-5.7          5.7.21-20-1.xenial                         amd64        Percona Server database client binaries
ii  percona-server-common-5.7          5.7.21-20-1.xenial                         amd64        Percona Server database common files (e.g. /etc/mysql/my.cnf)
ii  percona-server-server-5.7          5.7.21-20-1.xenial                         amd64        Percona Server database server binaries