syusutils/vagrant: fix with newer bundler

Adding a patch to make bundler work with the newer version of rubygem-bundler

PR:		193600
Submitted by:	swills (myself)
Approved by:	Joe Benden <joe@thrallingpenguin.com> (maintainer)


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@369181 35697150-7ecd-e111-bb59-0022644237b5