cacti logs and databases would be better stored under ${prefix}/var

[ryandesign (Ryan Carsten Schmidt)]

cacti stores its log file in the log directory inside its directory. It would fit better with the MacPorts hierarchy if the log were stored in ${prefix}/var/log/${name}.

Similarly, the round robin database is stored in the rra directory inside its directory. A better fit with the MacPorts mtree would be ${prefix}/var/db/${name} (or ${prefix}/var/db/${name}/rra if we anticipate there being other cacti databases other than those in the rra directory).

[mf2k (Frank Schima)]

markd has retired. See #44782.