vzmigrate: Get rid of 'echo -e' bashism

Apparently using 'echo -e' is non-portable. Replace to printf
which is supposed to be portable and understand escape sequences
(as recommended by https://wiki.ubuntu.com/DashAsBinSh).

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=581147

Reported-by: Raphael Geissert <atomo64@gmail.com>
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
1 file changed