guile-www-2.9 (www cgi) names in query-string not url-decoded

[Alan Grover]

The (www cgi) module parses query-string/form-data without performing an 
url-decode on names. Values are url-decoded.

Module: www cgi
Version: 2.9

Example:
        http://gnu.org?with%26amper=
should parse to ("with&amper" . '()). But, incorrectly parses to 
("with%26amper" . '()).


Suggested patch:

cgi.scm

286c286
<       (and p (subs pair 0 p))))
---
>       (and p (url-coding:decode (subs pair 0 p)))))

--
Alan Grover
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+1.734.476.0969