'#export()' depends on '{' locaiton

[truemetal]

Here's a bit of inconsistency in .leaf parsing. You can still get the job done but still it feels like it should not be like that.

This works fine, and renders expected 'Hey'

#export("body") {
    <h1>Hey</h1>
}

And this renders nothing:

#export("body")
{
    <h1>Hey</h1>
}

[tanner0101]

We should either support unlimited whitespace between ) and { or throw an error

[0xTim]

It also doesn't work without the space, just to add

[plummer]

The pr above supports any amount of whitespace, including no whitespace.