Correct logic so that not both lines are displayed

e.g.:-
2014-02-25 06:56:39 received getdata (1 invsz)
2014-02-25 06:56:39 received getdata for: tx 8e2e08d1d851eb1ac800e814796dd7b86fd6d3a8fad41d5bdcb873ac6f4aba8d

The first line isn't necessary since the 2nd line includes the same information, and more.