Remove trailing newline

Author: chriszarate

main_test.go

@@ -83,4 +83,4 @@ func TestMultipleReplaceWithoutNewlineAtEOF(t *testing.T) {
 	input := "Space, the final frontier!\nCheck out: http://uss-enterprise.com/decks/10/sections/forward"
 	expected := "Space, the final frontier!\nCheck out: warp://ncc-1701-d.space/decks/10/areas/forward"
 	doMainTest(t, input, expected, mainArgs)
-}
+}