ecore-con - silence bsd source wanrings for dns.c

ecore-con - silence bsd source wanrings for dns.c

silence this annoying warning we've had for a while:

In file included from /usr/include/stdint.h:25:0,
                 from
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.9.2/include/stdint.h:9,
                 from lib/ecore_con/dns.c:45:
                 /usr/include/features.h:148:3: warning: #warning
"_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
[-Wcpp]
 # warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use
_DEFAULT_SOURCE"