• Add fetch function to rkhunter
• Remove wget as a dependency
• Added NO_ARCH
• Fixed portlint items

PR: 219825
Submitted by: Helge Oldach <freebsd@oldach.net>
Reviewed by: matthew (mentor)
Approved by: Lukasz Wasikowski <lukasz@wasikowski.net> (maintainer), matthew (mentor)
Differential Revision: https://reviews.freebsd.org/D11168