fix test on 1.6

Author: Roger-luo

test/TrialsTests.jl

@@ -214,9 +214,20 @@ BenchmarkTools.TrialEstimate:
 
 @test sprint(show, [ta, tb]) == "BenchmarkTools.TrialEstimate[0.490 ns, 1.000 ns]"
 
-# @test sprint(show, "text/plain", [ta, tb]) == """
-# 2-element Array{BenchmarkTools.TrialEstimate,1}:
-#  0.490 ns
-#  1.000 ns"""
+@static if VERSION < v"1.6-"
+
+@test sprint(show, "text/plain", [ta, tb]) == """
+2-element Array{BenchmarkTools.TrialEstimate,1}:
+ 0.490 ns
+ 1.000 ns"""
+
+else
+
+@test sprint(show, "text/plain", [ta, tb]) == """
+2-element Vector{BenchmarkTools.TrialEstimate}:
+ 0.490 ns
+ 1.000 ns"""
+
+end
 
 end # module