CA-289145: Close socket if error occurs when connecting

[krizex]

Signed-off-by: Yang Qian yang.qian@citrix.com

[mseri]

@gaborigloi remember to pick this change if needed in the new xapi-storage

[mseri]

travis failure on gen_html, maybe due to the new version of Cow? Somebody please fix it

jbuilder build @gen_html
      ocamlc generator/html/.www.eobjs/www.{cmi,cmo,cmt} (exit 2)
(cd _build/default && /home/travis/.opam/4.04.2/bin/ocamlc.opt -w -40 -g -bin-annot -I generator/html/.www.eobjs -I /home/travis/.opam/4.04.2/lib/bytes -I /home/travis/.opam/4.04.2/lib/caml2html -I /home/travis/.opam/4.04.2/lib/cow -I /home/travis/.opam/4.04.2/lib/cstruct -I /home/travis/.opam/4.04.2/lib/ezjsonm -I /home/travis/.opam/4.04.2/lib/hex -I /home/travis/.opam/4.04.2/lib/jsonm -I /home/travis/.opam/4.04.2/lib/omd -I /home/travis/.opam/4.04.2/lib/parsexp -I /home/travis/.opam/4.04.2/lib/ppx_sexp_conv/runtime-lib -I /home/travis/.opam/4.04.2/lib/re -I /home/travis/.opam/4.04.2/lib/re/posix -I /home/travis/.opam/4.04.2/lib/sexplib -I /home/travis/.opam/4.04.2/lib/sexplib0 -I /home/travis/.opam/4.04.2/lib/stringext -I /home/travis/.opam/4.04.2/lib/uchar -I /home/travis/.opam/4.04.2/lib/uri -I /home/travis/.opam/4.04.2/lib/uutf -I /home/travis/.opam/4.04.2/lib/xmlm -I generator/lib/.generator_lib.objs -no-alias-deps -o generator/html/.www.eobjs/www.cmo -c -impl generator/html/www.ml)
File "generator/html/www.ml", line 327, characters 12-14:
Error: This expression has type ('a Cow__.Xml.frag as 'a) Cow__.Xml.frag list
       This is not a function; it cannot be applied.

[gaborigloi]

We'll remove this when the sxm branch gets merged, so I think it's fine to ignore