Remove superfluous trailing line in trait usage generated code

[dsavina]

Q	A
Bugfix	yes
BC Break	no

Description

This is a minor codestyle fix regarding the trait usage generated code when providing either aliases or replacements for a trait.

Let's consider following example script:

$class = new ClassGenerator('Talker');
$class->addTrait('A');
$class->addTrait('B');
$class->addTraitAlias('B::smallTalk', 'gossip');
$class->addTraitOverride('A::bigTalk', 'B');

echo $class->generate();

As of now, the output will be (note the double line break after the insteadof statement):

class Talker
{
    use A, B {
        B::smallTalk as gossip;
        A::bigTalk insteadof B;

    }
}

With present patch, generated code will now be:

class Talker
{
    use A, B {
        B::smallTalk as gossip;
        A::bigTalk insteadof B;
    }
}

[Ocramius]

Thanks @dsavina!