Cuda 10.1: Nvidia, you're now "fixing" gcc bugs that gcc doesn't even have

[curtpm]

changing devtoolset-8/root/usr/include/c++/8/bits/basic_string.tcc:1067 from this:

__p->_M_set_sharable();

to this seems to fix the compiler error:

(*__p)._M_set_sharable();