Find the correct symbol when res_* is a define to __res_*
Find the correct symbol when res_* is a define to __res_*

Signed-off-by: Andrew Bartlett <9503ccf2b9baea7c4d590fbd562f8b0a297738eb@samba.org>
Reviewed-by: Andreas Schneider <5be00ddc76278cf6077f5047ca3384a88460c671@cryptomilk.org>
Reviewed-by: Stefan Metzmacher <f1988b9e977fc98ae4b41148d1c7fe6accb829c3@samba.org>

jhrozek/resolv_wrapper