[Bug other/79046] g++ -print-file-name=plugin uses full version number in path

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79046

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
See https://gcc.gnu.org/ml/gcc/2017-01/msg00033.html