Change "Use at most xxx% of total disk space" to use partition size.

[Ageless]

With hard drives sizes growing by the week, almost, wouldn't it be better if the "Use at most xxx% of total disk space" was changed to using the size of the partition that the BOINC (Data) directory lives on only?

It is getting a bit weird that people have a 180 gigabytes free on their 200GB partition on a 300GB hard drive, but they don't get work because they set this preference to 50%.

Since that preference looks at the total hard drive space of 300GB, 50% of that is 150GB, which is smaller than 180GB... and so you don't get work. Really now, which project needs all this space? And why does BOINC need to take into account all of the hard drive's space, when it can well do with the partition it is on only? Making sense to the user.