swrap: Properly cache the handle also in LIBC_SO case.
swrap: Properly cache the handle also in LIBC_SO case.

Small regression introduced by me in commit
0fa56909442c3cfea6a697681ea0e89ba5a0aa0f.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=10572

Reviewed-by: Andreas Schneider <5be00ddc76278cf6077f5047ca3384a88460c671@samba.org>
Reviewed-by: Michael Adam <dcf2bf3ff8ea93047d51252815aac9756207ea09@samba.org>

jhrozek/socket_wrapper,anoopcs9/socket_wrapper,jhrozek/socket_wrapper,anoopcs9/socket_wrapper