Resolve numerical instability in entropy of GeometricLogits.
#1852
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Resolves numerical instability in
entropy()method ofGeometricLogitsas discussed in #1696 and #1706.I tried adding
T(dist.GeometricLogits, np.array([-60.0, 60.0])),to theDISCRETElist of distributions intest/test_distributions.pyto verify the changes, but that led to a number of tests failing.