[Fedora-spins] Review request for --skipcopy patches

I have attached two patches from bug 582051 that are intended to make --skipcopy more useful for testing. One is for functionallity, the other expands the documentation of what skipcopy skips a bit better. As discussed in the bug report I don't like: +if [ -s $USBMNT/$LIVEOS/$OVERFILE ]; then and think that it should be: +if [ "$overlaysizemb" -gt 0 ]; then This is easier to understand and seems more likely to be correct. I am not sure if my comment about my suggestion was misunderstood, but I don't see why my suggestion wouldn't work and the one provided would. But maybe there is something subtle going on. Since --skipcopy is for testing I don't think the patch will have much impact on normal use. So I would be inclined to except this patch if modified as I suggest, but I'd like to get more feedback.