This fixes a mismatch between PS listing that returned
USERNAME but code was pruning based on UID.
This changes the OPAL_PS_FLAVOR_CHECK format to return
'uid' instead of 'user'. (Note: Avoiding call to
getlogin_r() but assuming UID is uniform on system,
same assumption exists for session dir anyway.)
Note, still maintains behavior from man page for root
running orte-clean on node (kills all orteds).
Adds 'orte-dvm' to list of procnames that will be checked/killed.
Signed-off-by: Thomas Naughton <naughtont@ornl.gov>