style50 doesn't pickup on comments that don't begin with a space

style50 output with the following line:
``` C
    //set up the array of candidates
```

``` bash
runoff/ $ style50 runoff.c 
Results generated by style50 v2.7.5
Looks good!
```

But check50 states that a space is needed:
``` C
    // set up the array of candidates
```