add --xflags, -x supports --raw

Signed-off-by: nixnodes <code@nixnodes.net>
'-lom' argument processing bug, --xflags and 'x' log type (see
--help),Removed obsolete 'curtime' field used with '-x' (12), Gzip
disabled by default (to enable compile with --enable-gzip)

Signed-off-by: nixnodes <code@nixnodes.net>