man/vzctl.8: formatting fixes for sub-sub-headings

If there is a text after sub-sub-heading, it should be delimited
with .PP, otherwise (like it was for "Resource limits" and
"CPU fair scheduler parameters" etc) this text will be indented
incorrectly.

While at it:

* s/Veth/veth/
* s/Iptables/iptables/
* use simpler formatting for bold lines (just .B)

Signed-off-by: Kir Kolyshkin <kir@openvz.org>
1 file changed