Satish Balay 98c2184bd3 petsc: update to latest 3.8 version [and include 3.7.7] (#5723) ... Also fix flake8 warning "import os should be before import sys"		2017-10-12 12:46:00 -06:00
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spack	petsc: update to latest 3.8 version [and include 3.7.7] (#5723)	2017-10-12 12:46:00 -06:00