adapt to master updates

Author: hhaensel

test/fmt.jl

@@ -20,6 +20,9 @@ i = 1234567
 @test fmt(i) == "1234567"
 @test fmt(i,:commas) == "1,234,567"
 
+@test_throws ErrorException fmt_default(Real)
+@test_throws ErrorException fmt_default(Complex)
+
 @test fmt(2 - 3im, 10) == "   2 - 3im"
 @test fmt(pi - 3im, 15, 2) == "  3.14 - 3.00im"