Subject: bug#35735: guix import hackage cassava fails (cabal brace syntax)

From: Robert Vollmert <[email-masked]>
Date: Tue, 14 May 2019 20:33:25 +0200

$ guix import hackage cassava
…
Syntax error: unexpected token : { (at line 8, column 0)
Syntax error: unexpected end of input
guix import: error: failed to download cabal file for package ‘cassava’

The same happens with stackage import.

The reason seems to be unusal syntax in the description field, grouped by {}:

Description: {

@cassava@ is a library for parsing and encoding [RFC 4180](https://tools.ietf.org/html/rfc4180)
…
}