Remove leftover println in @defaults macro (#131) #51

Job	Run time
Julia 1.0 - ubuntu-latest - x64	1m 2s
Julia 1.0 - ubuntu-latest - x86	1m 12s
Julia 1.0 - macOS-latest - x64	2m 19s
Julia 1.0 - windows-latest - x64	5m 34s
Julia 1 - ubuntu-latest - x64	45s
Julia 1 - ubuntu-latest - x86	46s
Julia 1 - macOS-latest - x64	1m 17s
Julia 1 - windows-latest - x64	1m 23s
Julia nightly - ubuntu-latest - x64	49s
Julia nightly - ubuntu-latest - x86	1m 5s
Julia nightly - macOS-latest - x64	1m 37s
Julia nightly - windows-latest - x64	1m 34s
	19m 23s

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