vzctl start: fix "Configure meminfo" message

(1) Make it say "Configuring meminfo"

(2) Remove the "if", user should guess that 0 is "none"

(3) Increase the log level so the message is not shown
    by default (use --verbose to see it).

Indeed, this feature is not something that deserves a line
on its own while doing vzctl start.

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