virtualbox: fix a typo in the expected location on mac os x
virtualbox: fix a typo in the expected location on mac os x

Mac OS X provides an "/Applications" folder, not an "/Application" folder,
so installed VirtualBox wasn't being detected by default.

This 1 character patch fixes this.

sshah-solarflare/Libvirt-PCI-passthrough-,novel/fbsd-libvirt,jardasgit/libvirt,nertpinx/libvirt,rmarwaha/libvirt1,warewolf/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,olafhering/libvirt,wiedi/libvirt,wiedi/libvirt,leilihh/libvirt,warewolf/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,emaste/libvirt,usc-isi/libvirt,rmarwaha/libvirt1,novel/fbsd-libvirt,amery/libvirt-vserver,trainstack/libvirt,rmarwaha/libvirt,crobinso/libvirt,iam-TJ/libvirt,cbosdo/libvirt,amery/libvirt-vserver,dumbbell/libvirt,libvirt/libvirt,elmarco/libvirt,iam-TJ/libvirt,jardasgit/libvirt,libvirt/libvirt,usc-isi/libvirt,trainstack/libvirt,foomango/libvirt,shugaoye/libvirt,andreabolognani/libvirt,novel/fbsd-libvirt,rmarwaha/libvirt,datto/libvirt,eskultety/libvirt,taget/libvirt,iam-TJ/libvirt,nertpinx/libvirt,rmarwaha/libvirt,bjzhang/libvirt,elmarco/libvirt,dumbbell/libvirt,datto/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,rmarwaha/libvirt1,iam-TJ/libvirt,kantai/libvirt-vfork,kantai/libvirt-vfork,rmarwaha/libvirt,wiedi/libvirt,novel/fbsd-libvirt,wiedi/libvirt,kantai/libvirt-vfork,agx/libvirt,taget/libvirt,libvirt/libvirt,bjzhang/libvirt,leilihh/libvirt,eskultety/libvirt,dumbbell/libvirt,shugaoye/libvirt,trainstack/libvirt,soulxu/libvirt-xuhj,elmarco/libvirt,usc-isi/libvirt,olafhering/libvirt,jeckersb/libvirt,rmarwaha/libvirt1,crobinso/libvirt,VenkatDatta/libvirt,agx/libvirt,wiedi/libvirt,shugaoye/libvirt,usc-isi/libvirt,soulxu/libvirt-xuhj,cbosdo/libvirt,eskultety/libvirt,fabianfreyer/libvirt,warewolf/libvirt,zhlcindy/libvirt-1.1.4-maintain,zippy2/libvirt,novel/fbsd-libvirt,rmarwaha/libvirt,nertpinx/libvirt,taget/libvirt,danwent/libvirt-ovs,agx/libvirt,rlaager/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,siboulet/libvirt-openvz,dumbbell/libvirt,zippy2/libvirt,siboulet/libvirt-openvz,emaste/libvirt,emaste/libvirt,soulxu/libvirt-xuhj,leilihh/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,jeckersb/libvirt,danwent/libvirt-ovs,rmarwaha/libvirt1,crobinso/libvirt,datto/libvirt,rbu/libvirt,jardasgit/libvirt,novel/fbsd-libvirt,foomango/libvirt,olafhering/libvirt,zhlcindy/libvirt-1.1.4-maintain,novel/fbsd-libvirt,taget/libvirt,jeckersb/libvirt,dumbbell/libvirt,leilihh/libvirt,jfehlig/libvirt,jeckersb/libvirt,wiedi/libvirt,siboulet/libvirt-openvz,usc-isi/libvirt,amery/libvirt-vserver,jfehlig/libvirt,elmarco/libvirt,amery/libvirt-vserver,jfehlig/libvirt,andreabolognani/libvirt,iam-TJ/libvirt,cbosdo/libvirt,rbu/libvirt,crobinso/libvirt,rlaager/libvirt,emaste/libvirt,zhlcindy/libvirt-1.1.4-maintain,danwent/libvirt-ovs,trainstack/libvirt,rmarwaha/libvirt,foomango/libvirt,wiedi/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,rlaager/libvirt,bjzhang/libvirt,soulxu/libvirt-xuhj,zhlcindy/libvirt-1.1.4-maintain,iam-TJ/libvirt,soulxu/libvirt-xuhj,jeckersb/libvirt,shugaoye/libvirt,VenkatDatta/libvirt,zippy2/libvirt,amery/libvirt-vserver,rbu/libvirt,jardasgit/libvirt,jeckersb/libvirt,andreabolognani/libvirt,agx/libvirt,emaste/libvirt,zippy2/libvirt,iam-TJ/libvirt,novel/fbsd-libvirt,zhlcindy/libvirt-1.1.4-maintain,rbu/libvirt,eskultety/libvirt,taget/libvirt,siboulet/libvirt-openvz,rbu/libvirt,siboulet/libvirt-openvz,leilihh/libvirt,nertpinx/libvirt,warewolf/libvirt,trainstack/libvirt,agx/libvirt,eskultety/libvirt,novel/fbsd-libvirt,VenkatDatta/libvirt,leilihh/libvirt,warewolf/libvirt,jardasgit/libvirt,rlaager/libvirt,jfehlig/libvirt,cbosdo/libvirt,fabianfreyer/libvirt,kantai/libvirt-vfork,bjzhang/libvirt,datto/libvirt,foomango/libvirt,danwent/libvirt-ovs,VenkatDatta/libvirt,emaste/libvirt,trainstack/libvirt,danwent/libvirt-ovs,jeckersb/libvirt,olafhering/libvirt,elmarco/libvirt,trainstack/libvirt,shugaoye/libvirt,warewolf/libvirt,rlaager/libvirt,nertpinx/libvirt,VenkatDatta/libvirt,foomango/libvirt,warewolf/libvirt,datto/libvirt,bjzhang/libvirt,cbosdo/libvirt,andreabolognani/libvirt,rmarwaha/libvirt1,dumbbell/libvirt,libvirt/libvirt,emaste/libvirt,kantai/libvirt-vfork