[Bug libstdc++/55728] std::bad_function_call has misleading what() result

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55728



--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> 2013-01-03 
16:35:46 UTC ---

Yes, I would have done it already but was taking a break from writing any code

over xmas!



This one needs a new export from the lib, but that's OK, I bumped the version

to 6.0.18 recently anyway.