Extra dots in some operator symbols in ref table for abstract machine instructions?

[sogaiu]

There are some operators in the description column of the reference table for the abstract machine's intructions that start with a dot:

$dest = $lhs .>= $rhs
$dest = $lhs .> im
$dest = $lhs .<= $rhs
$dest = $lhs .< im

May be these dots are not intentional?