possible incorrect index check error

[philwalk]

It seems possible that the following error has root cause in this library: breeze Issue 850. The error might be a bug in dev.ludovic.netlib.blas.AbstractBLAS.checkIndex rather than breeze.

On line 295, the method is called with index==12, which is clearly beyond the end of the array, but the actual expression would seem to only require 11. Perhaps offsetb is incorrect, should it be offsetb -1?.