Julia 1.3 support

Author: ararslan

Diff for: src/truncated/lognormal.jl

@@ -37,7 +37,7 @@ function kurtosis(d::Truncated{<:LogNormal})
     m3 = mgf(tn, 3)
     m4 = mgf(tn, 4)
     v = m2 - m1^2
-    return evalpoly(m1, (m4, -4m3, 6m2, 0, -3)) / v^2 - 3
+    return @horner(m1, m4, -4m3, 6m2, 0, -3) / v^2 - 3
 end
 
 median(d::Truncated{<:LogNormal}) = exp(median(_truncnorm(d)))