make: protobuf -- Simplify sed'ing

No need for multiple sed calls, better pass
all options in once.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
docs: Put a \Backslash where needed

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
sk: Fix check for whether or not to restore namespace in collect_sockets

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
sk: Don't fail collect_sockets in non netns case

This is already so, just move the check for netns case
into collect_sockets. It knows it does so.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>