Re: [Libvir] mark some diagnostics for translation

This makes it so some diagnostics emitted via the error function are checked for use of "_(...)" when you run "make syntax-check", and fixes the ones that lacked that: Enable the sc_unmarked_diagnostics test and correct all violations involving the "error" function. * Makefile.cfg (local-checks-to-skip): Remove from skip list. Then, at the end, a second patch: Mark a string for translation. * src/virsh.c: Add a "%s" and wrap with _(...). Note that technically, it doesn't make sense to translate a diagnostic like this (there are several like this): error (conn, VIR_ERR_RPC, _("maxids > REMOTE_DOMAIN_ID_LIST_MAX")); However, if it's worth emitting the diagnostic, then I think it's worth making it a little more useful to someone not reading the code, e.g., too many domains (maximum is %d) If no one objects, I'll convert the ones below.