bpo-37583: Add err 113 to support.get_socket_conn_refused_errs() (GH-14729)


Add error number 113 EHOSTUNREACH to get_socket_conn_refused_errs()
of test.support.
(cherry picked from commit 1ac2a83f30312976502fda042db5ce18d10ceec2)

Co-authored-by: Hai Shi <shihai1992@gmail.com>
1 file changed