#5 Percentage fields broken when run continuously full-screen.

[Noah Spurrier]

When I run `procinfo -n1` I get "inf" and "nan" for
all the percentage fields for user, nice, system, etc.
You have to let it run through at least one update
cycle before the fields get wiped out.

user : 00:00:00.42 inf% page in : 49511539
nice : 00:00:00.00 nan% page out: 52927093
system: 00:00:00.08 inf% page act: 1917664
IOwait: 00:00:00.11 inf% page dea: 1088641
hw irq: 00:00:00.00 nan% page flt: 77728703
sw irq: 00:00:00.01 inf% swap in : 3578
idle : 00:00:07.32 inf% swap out: 5220

Note that it does work if you give the '-d' option
except that -d no longer implies -f, so you still need
to give it the -n option. For example, this works:

procinfo -n1 -d