MFC r301592

MFC r301592

Don't leak addrinfo if ai->ai_addrlen <= minsiz test fails.

If the ai->ai_addrlen <= minsiz test fails, then freeaddrinfo()
does not get called to free the memory just allocated by getaddrinfo().
Fix by moving ai->ai_addrlen <= minsiz to a separate nested if
block, and keep freeaddrinfo() in the outer block so that freeaddrinfo()
will be called whenever getaddrinfo() succeeds.

Reported by:	Coverity
CID:		1273652
Reviewed by:	ume
Differential Revision:	https://reviews.freebsd.org/D6756

git-svn-id: svn://svn.freebsd.org/base/stable/10@301920 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f