sync: fall back to full sync when --file-system has no operands#11393

can1357 wants to merge 2 commits intouutils:mainuutils/coreutils:mainfrom

can1357:sync-fall-back-to-full-sync-when-file-system-has-no-operandscan1357/coreutils:sync-fall-back-to-full-sync-when-file-system-has-no-operandsCopy head branch name to clipboard