Bug#900069: openmpi: mpicc/mpicxx comiler wrappers set rpath

[Graham Inggs]

I hit this problem in 3.1.0-4 a few hours ago, before 3.1.0-5 was picked 
up by the mirrors.

Are you sure this still occurs in 3.1.0-5?  Otherwise, this is a 
duplicate of #899391.