Re: [libvirt] [PATCHv2 1/8] util: add virVasprintf

* src/util/util.h (virVasprintf): New declaration. * src/util/util.c (virVasprintf): New function. (virAsprintf): Use it. * src/util/virtaudit.c (virAuditSend): Likewise. * src/libvirt_private.syms: Export it. * cfg.mk (sc_prohibit_asprintf): Also prohibit vasprintf. * .x-sc_prohibit_asprintf: Add exemption. --- v2: new patch; makes virCommandAddArgFormat possible in later patch