libdns: Avoid using compound literals (2).
* dirmngr/dns.h (dns_strsection1, dns_strsection3): Remove. (dns_strclass1, dns_strclass3): Remove. (dns_strtype1, dns_strtype3): Remove. (dns_strsection, dns_strclass, dns_strtype): Directly use the function. * dirmngr/dns.c (dns_strsection): Use automatic variable. (dns_strclass, dns_strtype): Likewise.
(cherry picked from commit 455ef62d29a112de05897139716265d07e4c6ae3)
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>