snapshot: minor cleanups from reviewing indentation
snapshot: minor cleanups from reviewing indentation

Break some long lines, and use more efficient functions when possible,
such as relying on virBufferEscapeString to skip output on a NULL arg.
Ensure that output does not embed newlines, since auto-indent won't
work in those situations.

* src/conf/domain_conf.c (virDomainTimerDefFormat): Break output lines.
(virDomainDefFormatInternal, virDomainDiskDefFormat)
(virDomainActualNetDefFormat, virDomainNetDefFormat)
(virDomainHostdevDefFormat): Minor cleanups.

usc-isi/libvirt,olafhering/libvirt,nertpinx/libvirt,bjzhang/libvirt,jeckersb/libvirt,warewolf/libvirt,foomango/libvirt,eskultety/libvirt,rmarwaha/libvirt1,fabianfreyer/libvirt,leilihh/libvirt,foomango/libvirt,rmarwaha/libvirt1,shugaoye/libvirt,agx/libvirt,warewolf/libvirt,iam-TJ/libvirt,datto/libvirt,cbosdo/libvirt,zhlcindy/libvirt-1.1.4-maintain,datto/libvirt,trainstack/libvirt,taget/libvirt,novel/fbsd-libvirt,leilihh/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,zippy2/libvirt,trainstack/libvirt,trainstack/libvirt,jardasgit/libvirt,leilihh/libvirt,olafhering/libvirt,zhlcindy/libvirt-1.1.4-maintain,zhlcindy/libvirt-1.1.4-maintain,bjzhang/libvirt,nertpinx/libvirt,jeckersb/libvirt,foomango/libvirt,elmarco/libvirt,jardasgit/libvirt,leilihh/libvirt,usc-isi/libvirt,agx/libvirt,siboulet/libvirt-openvz,cbosdo/libvirt,cbosdo/libvirt,iam-TJ/libvirt,libvirt/libvirt,rlaager/libvirt,iam-TJ/libvirt,andreabolognani/libvirt,dumbbell/libvirt,emaste/libvirt,shugaoye/libvirt,shugaoye/libvirt,leilihh/libvirt,shugaoye/libvirt,cbosdo/libvirt,elmarco/libvirt,dumbbell/libvirt,crobinso/libvirt,nertpinx/libvirt,jeckersb/libvirt,elmarco/libvirt,rlaager/libvirt,danwent/libvirt-ovs,jeckersb/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,elmarco/libvirt,novel/fbsd-libvirt,emaste/libvirt,libvirt/libvirt,usc-isi/libvirt,novel/fbsd-libvirt,rlaager/libvirt,taget/libvirt,dumbbell/libvirt,taget/libvirt,danwent/libvirt-ovs,olafhering/libvirt,bjzhang/libvirt,VenkatDatta/libvirt,rlaager/libvirt,danwent/libvirt-ovs,danwent/libvirt-ovs,zippy2/libvirt,VenkatDatta/libvirt,emaste/libvirt,novel/fbsd-libvirt,rmarwaha/libvirt1,zhlcindy/libvirt-1.1.4-maintain,crobinso/libvirt,jardasgit/libvirt,warewolf/libvirt,jeckersb/libvirt,warewolf/libvirt,datto/libvirt,emaste/libvirt,nertpinx/libvirt,cbosdo/libvirt,siboulet/libvirt-openvz,novel/fbsd-libvirt,crobinso/libvirt,rmarwaha/libvirt,novel/fbsd-libvirt,novel/fbsd-libvirt,rmarwaha/libvirt,trainstack/libvirt,leilihh/libvirt,wiedi/libvirt,agx/libvirt,elmarco/libvirt,olafhering/libvirt,jfehlig/libvirt,crobinso/libvirt,dumbbell/libvirt,VenkatDatta/libvirt,zippy2/libvirt,emaste/libvirt,rmarwaha/libvirt,novel/fbsd-libvirt,wiedi/libvirt,iam-TJ/libvirt,agx/libvirt,rmarwaha/libvirt1,rmarwaha/libvirt1,rlaager/libvirt,siboulet/libvirt-openvz,dumbbell/libvirt,iam-TJ/libvirt,trainstack/libvirt,libvirt/libvirt,libvirt/libvirt,jfehlig/libvirt,iam-TJ/libvirt,datto/libvirt,wiedi/libvirt,taget/libvirt,wiedi/libvirt,usc-isi/libvirt,jeckersb/libvirt,eskultety/libvirt,bjzhang/libvirt,emaste/libvirt,eskultety/libvirt,foomango/libvirt,siboulet/libvirt-openvz,datto/libvirt,agx/libvirt,fabianfreyer/libvirt,danwent/libvirt-ovs,zippy2/libvirt,novel/fbsd-libvirt,warewolf/libvirt,rmarwaha/libvirt,dumbbell/libvirt,trainstack/libvirt,shugaoye/libvirt,siboulet/libvirt-openvz,jardasgit/libvirt,rmarwaha/libvirt,rmarwaha/libvirt1,warewolf/libvirt,usc-isi/libvirt,fabianfreyer/libvirt,trainstack/libvirt,eskultety/libvirt,foomango/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,bjzhang/libvirt,taget/libvirt,nertpinx/libvirt,andreabolognani/libvirt,zhlcindy/libvirt-1.1.4-maintain,warewolf/libvirt,iam-TJ/libvirt,wiedi/libvirt,rmarwaha/libvirt,wiedi/libvirt,VenkatDatta/libvirt,eskultety/libvirt,jeckersb/libvirt,andreabolognani/libvirt,andreabolognani/libvirt,jardasgit/libvirt,wiedi/libvirt,emaste/libvirt