plot-mover.sh - single digit destination are incorrectly assumed to be in use.

[johnbiggs]

If user has destination named drive-1, drive-2, ... drive-19, drive-20 then drive-1 is rarely used because the mover assumes drive-1 is in use if a current move is in progress for drive-10-19. Same can be true for drive-2 on large destinations.

Fix appears to work.
- if lsof -w -p "$pid" | grep "$drive" > /dev/null
+ if lsof -w -p "$pid" | grep -e "$drive/" > /dev/null