- fix completions installations [1]
- while here explictly name LICENSE_PERMS

PR:		177755
Submitted by:	freebsd@geoffgarside.co.uk [1], fmb@onibox.net (maintainer)
Approved by:	maintainer
Merge pull request #70 from reallyenglish/tomoyukis

- fix completions installations [1]

fixes errors from many cron jobs ".bash_profile: line 15: /usr/local/libexec/../completions/rbenv.bash: No such file or directory"