devel/rubygem-rspec-its: Fix shebang

[pizzamig]

Summary

devel/rubygem-rspec-its: Fix shebang

PR\: 223696
Sumbitted by\: [e-mail]
Reviewd by\: [e-mail] (maintainer)
Approved by\: lme (mentor)
Approved by\: olivier (mentor)
Differential Revision\: https://reviews.freebsd.org/DXXXXX

Test Plan

Portlint's fine
Poudriere build on 10.3 10.4 11.0 11.1 on i386 amd64

[pizzamig]

This PR can be merged in quarterly.

Do you think I can add:

MFH: 2017Q4

in the comment?

[olivier]

In D13167#274313, @pizzamig wrote:

This PR can be merged in quarterly.

Do you think I can add:

MFH: 2017Q4

in the comment?

Yes you should: The port-security team will check and answer to this comment.