Apache2 is always writing startup information into the error log. See the following output:

```
[Fri Aug 26 12:57:54.298895 2016] [ssl:warn] [pid 4287] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache]
[Fri Aug 26 12:57:54.326885 2016] [mpm_prefork:notice] [pid 4287] AH00163: Apache/2.4.10 (Linux/SUSE) OpenSSL/1.0.1k-fips PHP/5.6.1 configured -- resuming normal operations
[Fri Aug 26 12:57:54.326943 2016] [core:notice] [pid 4287] AH00094: Command line: '/usr/sbin/httpd2-prefork -f /etc/apache2/httpd.conf -D CACTI -D SYSTEMD -D FOREGROUND'

```

How can I configure apache2 to stop that as it is confusing [webmin](http://www.webmin.com/) which thinks that although it started successfully, it did not..

I do not have a setting in any configuration file that says

```
LogLevel debug|trace

```