[patch] Fix comment typos in std_valarray.h

[Jonathan Wakely]

Volker Reichelt wrote:

> On 27 Jul, Jonathan Wakely wrote:
> > The original is fine, Gaby's version is fine, but Volker's is not good
> > English.  You never say "A has not B" in English, you say "A does not
> > have B."
> 
> Of course. Stupid me. Sorry!

I don't remember where, but exactly this oddity of English came up on
another list recently - I think it's fair to say it's English's
"typename"   ;)

> > FWIW the standard talks about lengths, not sizes, e.g.
> > "The resulting behavior is undefined if the length of the argument array
> > is not equal to the length of the *this array."
> 
> OTOH you call size() to get the length :-)

Good point!

> Thanks for the thorough review.
> 
> Ok, here's an updated version.

That all looks good to me.

> Is this OK for mainline?
> 
> Should I add you, Jon, to the ChangeLog?

I don't think I deserve that.  I can't help being pedantic about English,
so feel free to use me for grammar checking  :)

jon