add to rsync --inplace, to cp --reflink=auto

option --reflink=auto improve perfomance on CoW fs
for cp -a time=19s (ssd,btrfs,google-chrome=1.5G)
for cp -a --reflink=auto time=0.7s
rsync default time for start = 8s
rsync --inplace time for start = 1s
maybe i mistake in test, but this option safe to use and i think this can improve perfomance for psd