[PATCH 3/6] Convert _Complex cosine functions to generated code

[Adhemerval Zanella]

		  \
> diff --git a/math/b_cacos.c b/math/b_cacos.c
> new file mode 100644
> index 0000000..5fa006e
> --- /dev/null
> +++ b/math/b_cacos.c
> @@ -0,0 +1,59 @@
> +/* Return cosine of a complex type.
> +   Copyright (C) 1997-2016 Free Software Foundation, Inc.
> +   This file is part of the GNU C Library.
> +   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.

As for previous patch, I think we can use just current year and drop the
'Contributed by' on new files.