[Bug other/69006] [6 Regression] Extraneous newline emitted between error messages in GCC 6

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69006

--- Comment #2 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
v2 patch posted here:
  https://gcc.gnu.org/ml/gcc-patches/2016-01/msg01915.html