[patch: libc/rpc/svc_vc.c] clang analyser: Branch condition evaluates to a garbage value

Hi All,

While using clang static analyzer at CURRENT (r261322) I got:
http://gw.wart.ru/2014-02-01-200848-39517-1/report-01bc48.html

There is no need at line 143 to "goto cleanup_svc_vc_create" (neither
xprt nor r are allocated so far). Just "return NULL" should be fine.
BTW, NetBSD do the latter as well.

So I propose a tiny patch (attached).

-- 
WBR, Boris Samorodov (bsam)
FreeBSD Committer, http://www.FreeBSD.org The Power To Serve