[patch] libstdc++/66055 add missing constructors to unordered containers

[Jonathan Wakely]

On 17/05/15 22:21 +0200, François Dumont wrote:
>Ok, I just commit fixing some other lines length except those having a 
>long hyperlink, I didn't want to break those.

Yep, thanks. I think we should backport Nathan's patch and your one to
the gcc-5-branch too.

I'll make a note to do that before the 5.2 release.