tests: test previous commit
tests: test previous commit

Add a test to avoid virCommand regressions.

* tests/commandtest.c (test8): Explicitly test env-var overrides.

eskultety/libvirt,trainstack/libvirt,datto/libvirt,shugaoye/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,datto/libvirt,andreabolognani/libvirt,emaste/libvirt,siboulet/libvirt-openvz,VenkatDatta/libvirt,agx/libvirt,jeckersb/libvirt,novel/fbsd-libvirt,VenkatDatta/libvirt,warewolf/libvirt,agx/libvirt,warewolf/libvirt,agx/libvirt,novel/fbsd-libvirt,jeckersb/libvirt,jfehlig/libvirt,nertpinx/libvirt,elmarco/libvirt,rlaager/libvirt,iam-TJ/libvirt,taget/libvirt,zhlcindy/libvirt-1.1.4-maintain,siboulet/libvirt-openvz,fabianfreyer/libvirt,zippy2/libvirt,elmarco/libvirt,rlaager/libvirt,zhlcindy/libvirt-1.1.4-maintain,zippy2/libvirt,emaste/libvirt,zhlcindy/libvirt-1.1.4-maintain,jeckersb/libvirt,emaste/libvirt,cbosdo/libvirt,emaste/libvirt,libvirt/libvirt,emaste/libvirt,andreabolognani/libvirt,crobinso/libvirt,cbosdo/libvirt,bjzhang/libvirt,VenkatDatta/libvirt,novel/fbsd-libvirt,novel/fbsd-libvirt,crobinso/libvirt,jfehlig/libvirt,shugaoye/libvirt,taget/libvirt,jeckersb/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,warewolf/libvirt,novel/fbsd-libvirt,libvirt/libvirt,rlaager/libvirt,bjzhang/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,datto/libvirt,zhlcindy/libvirt-1.1.4-maintain,taget/libvirt,jardasgit/libvirt,emaste/libvirt,warewolf/libvirt,shugaoye/libvirt,zippy2/libvirt,cbosdo/libvirt,rlaager/libvirt,elmarco/libvirt,nertpinx/libvirt,olafhering/libvirt,novel/fbsd-libvirt,siboulet/libvirt-openvz,taget/libvirt,datto/libvirt,taget/libvirt,datto/libvirt,crobinso/libvirt,siboulet/libvirt-openvz,jeckersb/libvirt,zhlcindy/libvirt-1.1.4-maintain,libvirt/libvirt,cbosdo/libvirt,eskultety/libvirt,emaste/libvirt,shugaoye/libvirt,trainstack/libvirt,iam-TJ/libvirt,jardasgit/libvirt,jfehlig/libvirt,libvirt/libvirt,nertpinx/libvirt,olafhering/libvirt,jfehlig/libvirt,iam-TJ/libvirt,nertpinx/libvirt,andreabolognani/libvirt,novel/fbsd-libvirt,bjzhang/libvirt,agx/libvirt,rlaager/libvirt,elmarco/libvirt,cbosdo/libvirt,nertpinx/libvirt,eskultety/libvirt,trainstack/libvirt,olafhering/libvirt,trainstack/libvirt,elmarco/libvirt,eskultety/libvirt,warewolf/libvirt,andreabolognani/libvirt,trainstack/libvirt,zippy2/libvirt,jardasgit/libvirt,iam-TJ/libvirt,bjzhang/libvirt,fabianfreyer/libvirt,iam-TJ/libvirt,iam-TJ/libvirt,warewolf/libvirt,crobinso/libvirt,novel/fbsd-libvirt,shugaoye/libvirt,VenkatDatta/libvirt,trainstack/libvirt,trainstack/libvirt,agx/libvirt,siboulet/libvirt-openvz,jeckersb/libvirt,olafhering/libvirt,novel/fbsd-libvirt,eskultety/libvirt,iam-TJ/libvirt,warewolf/libvirt,fabianfreyer/libvirt,bjzhang/libvirt,jeckersb/libvirt