Fix declaration syntax error

[vibs29]

No description provided.

[stassats]

How's that a syntax error?

[hanshuebner]

How's that a syntax error?

Some ancient lisps object. Not sure which one this is meant to appease.

[vibs29]

Oh you're right, it's not a syntax error. Sorry. Please reject this pull request.

I realise now that "type" is optional in (declare (type ...)).

When I loaded drakma into clisp (a recent 2024 version), this message went by as it compiled encoding.lisp:

WARNING: in DECODE-FLEXI-STREAM in lines 89..107 : Unknown declaration
         FLEXI-INPUT-STREAM.
         The whole declaration will be ignored.

so I took that to mean a missing "type" and added it, which indeed got rid of the warning. But I don't know why, because I've checked that it accepts (declare (fixnum x)) without a "type".

[hanshuebner]

@vibs29 That begs the question why you try to use CLISP in the first place. It is unmaintained and - as you've noted already - has quite some quirks and deficiencies that make it difficult to get along with if you try using common open source libraries.