libc/netdb: fix memory leakage
libc/netdb: fix memory leakage

This patch fixes improper free in freeaddrinfo().

Change-Id: Icf6a94967a19b5de936d46fd954b64ce34d8bab0
Signed-off-by: Junyeon LEE <ddc45265127aa1feb4b01be10ec1f0d25d062d3d@samsung.com>

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