After build the project, I was reviewing trace of the compiling and saw the following message (sorry for the trace in spanish):

```
gcal-utils.c: En la función ‘icaltime_compare_with_current’:
gcal-utils.c:449:10: aviso: puede ser que se utilice ‘result’ sin inicializar en esta función [-Wmaybe-uninitialized]
   return result;
          ^
gcal-utils.c:420:8: nota: ‘result’ se declaró aquí
   gint result;
        ^
```

Basically the 'result' var is uninitialized.

I'm not sure if the attached patch breaks any coding convention, but solves the warning and simplifies the code a little.