qapi/parser: fix typo - self.returns.info => self.errors.info Small copy-pasto. The correct info field to use in this conditional block is self.errors.info. Fixes: 3a025d3d1ffa Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-ID: <20240315152301.3621858-2-armbru@redhat.com>