[Bug libstdc++/66464] codecvt_utf16 max_length returning incorrect value

[lcarreon at bigpond dot net.au]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66464

--- Comment #6 from Leo Carreon <lcarreon at bigpond dot net.au> ---
Has this fix been included in the recent gcc-5.1.1-3 update on Fedora 22?