Bug#926909: libblis-openmp-dev: blis needs to provide blas shlib dependency files

[Drew Parsons]

Package: libblis-openmp-dev
Version: 0.5.1-8
Followup-For: Bug #926909
Control: affects -1 src:slepc

Actually the error is in experimental, so that's with 
libblis2-openmp 0.5.1-8  (m68k sh4)