tests: vlog: logicbox: add newline after input def Signed-off-by: Karol Gugala <kgugala@antmicro.com>

diff --git a/tests/logicbox/logicbox.sim.v b/tests/logicbox/logicbox.sim.v
index 7b771cc..6ac2b93 100644
--- a/tests/logicbox/logicbox.sim.v
+++ b/tests/logicbox/logicbox.sim.v

@@ -1,6 +1,7 @@
 (* whitebox *)
 module LOGICBOX (I, O);
 	input wire I;
+
 	// we need this delay to make VPR see
 	// the connection between I and O
 	(* DELAY_CONST_I="30e-12" *)