libgo patch committed: Update to Go 1.5 release

[Ian Lance Taylor]

On Sun, Nov 8, 2015 at 9:21 AM, Rainer Orth <ro@cebitec.uni-bielefeld.de> wrote:
>
> There were two remaining problems:
>
> * Before Solaris 12, sendfile only lives in libsendfile.  This lead to
>   link failures in gotools.
>
> * Solaris 12 introduced a couple more types that use _in6_addr_t, which
>   are filtered out by mksysinfo.sh, leading to compilation failues.
>
> The following patch addresses both issues.  Solaris 10 and 11 bootstraps
> have completed, a Solaris 12 bootstrap is still running make check.

Thanks.  Committed to mainline.

Ian