src/pmlogger/pmlogmv.sh: fix bug for non-Linux systems
src/pmlogger/pmlogmv.sh: fix bug for non-Linux systems

Script contained a fragment to extract the link count for a file
from the output of stat(1) ... this did not work at all for the
BSD-based systems where stat(1) is completely different.

adfernandes/pcp,wuliming/pcp,wuliming/pcp,adfernandes/pcp,wuliming/pcp,wuliming/pcp,wuliming/pcp,wuliming/pcp,adfernandes/pcp,adfernandes/pcp,wuliming/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,wuliming/pcp,adfernandes/pcp