Re: [libvirt] [PATCHv2 2/2] build: update to latest gnulib

* .gnulib: Update to latest, for improved 'make syntax-check' and compiler warnings. * m4/virt-compile-warnings.m4 (LIBVIRT_COMPILE_WARNINGS): Re-silence -Wformat-nonliteral. * cfg.mk (_test_script_regex): Recognize our test scripts. * gnulib/local/lib/*.diff: Drop, now that gnulib has this. * tests/virsh-optparse: Fix use of compare. * tests/virsh-schedinfo: Likewise. --- v2: slightly newer gnulib; drop changes for unsuffixed float warning, and add fixes for misuse of 'compare' in tests.