MINOR: resolvers: new function find_srvrq_answer_record()

This function search for a SRV answer item associated to a requester
whose type is server.
This is mainly useful to "link" a server to its SRV record when no
additional record were found to configure the IP address.

This patch is required by a bug fix.

(cherry picked from commit 6a8d11dc8051f4fc40c9ab1266cd58367ea1ca19)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
2 files changed