Fix check for return value of qemuDomainAgentAvailable()
Fix check for return value of qemuDomainAgentAvailable()

Commit dcbb243bbc3470431d15cec4c5bb96d2de89a88b used the return value of
the function as int even though it returns bool.

Signed-off-by: Martin Kletzander <e82f23e74d43760279ebcc505dac4ae70d5627d0@redhat.com>

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