util: make virMacAddrParse more versatile
util: make virMacAddrParse more versatile

Previously the MAC address text was required to be terminated with a
NULL. After this, it can be terminated with a space or any control
character.

fabianfreyer/libvirt,olafhering/libvirt,eskultety/libvirt,crobinso/libvirt,jfehlig/libvirt,VenkatDatta/libvirt,datto/libvirt,libvirt/libvirt,zippy2/libvirt,jfehlig/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,nertpinx/libvirt,nertpinx/libvirt,nertpinx/libvirt,eskultety/libvirt,olafhering/libvirt,jardasgit/libvirt,datto/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt,zippy2/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt,datto/libvirt,eskultety/libvirt,libvirt/libvirt,andreabolognani/libvirt,olafhering/libvirt,jardasgit/libvirt,datto/libvirt,crobinso/libvirt,libvirt/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,crobinso/libvirt,andreabolognani/libvirt,zippy2/libvirt,zippy2/libvirt,olafhering/libvirt,datto/libvirt,andreabolognani/libvirt,jardasgit/libvirt,jardasgit/libvirt,jfehlig/libvirt,eskultety/libvirt,jardasgit/libvirt,libvirt/libvirt,nertpinx/libvirt,VenkatDatta/libvirt,eskultety/libvirt,andreabolognani/libvirt,nertpinx/libvirt,crobinso/libvirt