[PATCH] Remove 'explicit' keyword from constructors with multiple (non-default) arguments.

[David Blaikie]

Fwiw, if I'm not mistaken, explicit on more - than - one - arg actors does
have some meaning in c++11. It means you can't construct from a braced init
list.

I'm not sure if that's important to you/this warning.

http://reviews.llvm.org/D4242