output too.
Fine tune all coordinates and most field widths in the vmstat (sub)display
for this and previous changes now that we have to change almost all of them
just to move the ex-extended fields:
- change VMSTATROW back to 7. It was 6 due to a hack in the extended vm
stats changes.
- reduce the maximum field width that we try for from 9 to 8. 4 or 5 is
enough for most fields but we try to use the same width for all fields.
8 is enough to display everything without changing units memory sizes
exceed 100GB.
Fix some unrelated coordinates and field widths in comments.