recommended behaviour for "example" configuration files

[Jaroslav Kucher]

Kindly advice what is recommended actions for the "example"
configuration files after the port application install.

From the point of package database the removing or moving those files
will cause database inconsistency.

From the point of administrator to have a lot of useless files in
configuration directories is unwanted .

Example: after installations of amavis-new port there was 3 sample
files in /usr/local/etc/ directory:

*amavisd.conf-default
*amavisd.conf-dist   
*amavisd.conf-sample 

-- 
Best regards,
Jaroslav Kucher.