daily security run output and joomla3

[Carmel NY]

FreeBSD-11.1-RELEASE-p6

I have "www/joomla3" installed and working fine. Part of the configuration
routine is the removal of the "installation" directory in joomla3 when it is
configured. This is done as a security feature and joomla3 advertises that it
will not run if that directory is present.

The problem comes when the periodic daily security script activates. It
reports the following:

Checking for packages with mismatched checksums:
joomla3-3.8.3: missing file /usr/local/www/joomla3/installation/COPYRIGHT
joomla3-3.8.3: missing file /usr/local/www/joomla3/installation/CREDITS
joomla3-3.8.3: missing file /usr/local/www/joomla3/installation/INSTALL
joomla3-3.8.3: missing file /usr/local/www/joomla3/installation/LICENSES
{There are dozens more entires. I truncated the list to save space}

Is there anything I can do to eliminate this useless chatter? Maybe someway I
can create a new checksum that would not upset the system to radically?

Thanks!

-- 
Carmel