regent: Make setup_env.py build check for Terra slightly less aggressive.
regent: Make setup_env.py build check for Terra slightly less aggressive.

StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion