Improve error reporting in getnameinfo_async() and getaddrinfo_async().

They do not have to deal with h_errno at all.  Also, errno is only kept
for EAI_SYSTEM.  Small code cleanup while there.

Adapt getnameinfo() and getaddrinfo() wrappers to correctly save errno
and overwrite it in the EAI_SYSTEM case.

General errno handling issue reported by mikeb@.

0 files changed, 0 insertions, 0 deletions