metasploit dependencies aren't installing due to contention

[Dewayne Geraghty]

I'm not entirely sure who should pick this up but I filed a PR on
security/metasploit failing to build, due to conflicting placement of
subordinate ports.  Both devel/rubygem-i18n and
archivers/rubygem-rubyzip are trying to place files in the same location.

pkg-static: rubygem-i18n-0.7.0,2 conflicts with rubygem-rubyzip-1.1.6
(installs files into the same place).  Problematic file:
/usr/local/lib/ruby/gems/2.1/doc/rubyzip-1.1.6/rdoc/Zip/CentralDirectory.html
*** Error code 70

But when these are worked around, then
pkg-static: rubygem-activemodel-3.2.21 conflicts with
rubygem-json_pure-1.8.2 (installs files into the same place). 
Problematic file:
/usr/local/lib/ruby/gems/2.1/doc/activemodel-3.2.21/rdoc/ActiveModel/AttributeMethods/ClassMethods/AttributeMethodMatcher.html
*** Error code 70
occurs.

Further details in the PR
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=199107

The last time I successfully built metaploit was Feb 22, on FreeBSD10.1
stable amd64.  I usually update stable the day before we rebuild all
ports - its a historical thing.

I hope that someone may be able to assist?  I'm really just a "user" of
the metasploit tool and all I know about ruby is that its something that
my wife would like to have. :)

Regards, Dewayne.