iowatcher: Update usage info and improve man page

Bring the man page and usage string up-to-date with the new -p behaviour
and improve the formatting and content of the man page.

Signed-off-by: Andrew Price <anprice@redhat.com>
2 files changed
tree: ee46b600438eb590b1d2630388587925d07ca1e1
  1. iowatcher/