[go/en] rune is actually an alias for int32, not uint32

Bit of a small change but, according to the [Go specification](http://golang.org/ref/spec), rune is an alias for int32 and not uint32 as the tutorial currently says.
Is the distinction meaningful in this case? Surely rune doesn't care as
long as the byte order is the same.
On Aug 19, 2014 5:05 PM, "James Baxter" <notifications@github.com> wrote:

> In go.html.markdown:
>
> > @@ -78,7 +78,7 @@ func learnTypes() {
> >  can include line breaks.` // Same string type.
> >
> >  	// Non-ASCII literal.  Go source is UTF-8.
> > -	g := 'Σ' // rune type, an alias for uint32, holds a unicode code point.
>
> This line (and similar lines in the translations) says uint32, that's what
> this pull request fixes.
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/adambard/learnxinyminutes-docs/pull/724/files#r16420216>
> .
>