MFH: r454606

devel/rubygem-rspec-its: Fix shebang

PR: 223696
Submitted by: prj@rootwyrm.com
Reviewed by: naito.yuichiro@gmail.com (maintainer)
Approved by: olivier (mentor)
Differential Revision: https://reviews.freebsd.org/D13167

Approved by: ports-secteam (swills)