order of statements in create function

Hi,

why does everyone write

CREATE FUNCTION foo() RETURNS INTEGER AS '
blah blah
' LANGUAGE 'plpgsql';

I've never seen for example:

CREATE FUNCTION foo()
    RETURNS INTEGER
    LANGUAGE 'plpgsql'
    AS '
blah blah
';

Is there a special reason to this? I have a hard time believing that
everyone does it the same way by coincidence.

Thanks.

--
Markus Bertheau <twanger@bluetwanger.de>