t / t5100 / msg0004on commit usage.c: add warning_errno() and error_errno() (fd1d672)
   1Hello.
   2
   3Try all addresses for given remote name until it succeeds.
   4Also supports IPv6.
   5
   6Signed-of-by: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
   7