sysutils/htop: Add a new default LSOF option
htop only requires lsof for its open files view. Move the lsof run
dependency to an option so that it can be removed by users.
While here
- Add LICENSE_FILE
- Follow http://htop.sourceforge.net/ redirect to http://hisham.hm/htop/ and update WWW
PR: 224241
Approved by: gaod@hychen.org (maintainer timeout, 2 weeks)