Re: [Libvir] [PATCH] 1/2: Move safewrite and saferead to a separate file.

Move safewrite and saferead to a separate file. We currently use safewrite from inside libvirt and don't want to publish any such function name. However, we do want to use it in applications like virsh, libvirtd and libvirt_proxy that link with libvirt. To that end, this change moves that function definition (along with the nearly identical saferead) into a new file, util-lib.c. To avoid maintaining separate copies of even such small functions, we simply include that new file from util.c. Then, the separate applications that need to use safewrite simply compile and link with util-lib.c.