Some VMA-s can be merged on restore. For example, If a process maps
VMA1, VMA2 and then VMA3 between the previous ones.
|VMA1|VMA3|VMA2|
The VMA3 will be merged only with VMA1, but all three VMA-s will be
merged on restore, because they are mmaped in a correct order VMA1,
VMA3, VMA2.

Due to this issue, we have a small script for merging continuous VMA-s.
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>