* guix/packages.scm <package>: Use '@' in record printer.
* guix/import/cabal.scm <cabal-package>: Likewise
* guix/import/elpa.scm <elpa-package>: Likewise.
* tests/packages.scm: Adapt to it.
---
 guix/import/cabal.scm | 2 +-
 guix/import/elpa.scm  | 2 +-
 guix/packages.scm     | 2 +-
 tests/packages.scm    | 4 ++--
 4 files changed, 5 insertions(+), 5 deletions(-)