[DRBD-user] "Allow-dual-primary" example in manual

[Christiaan den Besten]

Hi !

http://www.drbd.org/users-guide/s-enable-dual-primary.html

6.5.1 mentions "allow-two-primaries yes;", this seems incorrect and
should be just "allow-two-primaries;" without the ' yes' addition.

(at least for DRBD 8.3.8)

bye,
Chris