Update lab_02.tb_alu.sv

Labs/02. Arithmetic-logic unit/lab_02.tb_alu.sv

@@ -64,7 +64,7 @@ initial
     $display("\nTest has been finished\nNumber of errors: %d\n", err_cnt);
     $finish();
     #5;
-    $display("You're trying to run simulation that has finished. Aborting simulation.")
+    $display("You're trying to run simulation that has finished. Aborting simulation.");
     $fatal();
   end