MM/POSIX: apply more CR comments.
MM/POSIX: apply more CR comments.

solves #392

shssf/ucx,abouteiller/ucx,manjugv/ucx,sergsagal1/ucx_rocm,abouteiller/ucx,abouteiller/ucx,abouteiller/ucx,manjugv/ucx,sergsagal1/ucx_rocm,manjugv/ucx,shssf/ucx,sergsagal1/ucx_rocm,shssf/ucx