Nobody will care how many hours it takes you although if you go into an airline interview and boast that you took 200 hours to get your CPL they might begin to think you're a muppet! I went over hours by around 5 (I think) basically as I wanted more practice just to make sure I stood the best chance of getting through the test.
If you take more you don't need to tell anybody - the fact you have the licence is what matters.
Good luck!!