Update gnulib to commit cabce6b8
Update gnulib to commit cabce6b8

jasperla/augeas,raphink/augeas,MikaelSmith/augeas,hercules-team/augeas-do-not-use,kumy/augeas,mchf/augeas,jjlin/augeas,kunkku/augeas,GeoffWilliams/augeas,dafugg/augeas,lutter/augeas,pevalme/augeas,pevalme/augeas,dafugg/augeas,kumy/augeas,dafugg/augeas,kumy/augeas,mlichvar/augeas,GeoffWilliams/augeas,pevalme/augeas,hercules-team/augeas,lutter/augeas,ptoscano/augeas,mlichvar/augeas,jasperla/augeas,lutter/augeas,manandbytes/augeas,hercules-team/augeas-do-not-use,jtopjian/augeas,jtopjian/augeas,jjlin/augeas,ptoscano/augeas,hercules-team/augeas,ptoscano/augeas,kunkku/augeas,kumy/augeas,hercules-team/augeas-do-not-use,manandbytes/augeas,mchf/augeas,kunkku/augeas,raphink/augeas,jjlin/augeas,mlichvar/augeas,MikaelSmith/augeas