UtilCache fileStore

[Adam Heath-2]

UtilCache uses CacheLineTable, and passes a per-instance fileStore.
However, CacheLineTable uses a *static* jdbm storage manager.  So the
first time a CacheLineTable is created that needs to be stored on
disk, the manager will be created with that instance's fileStore
location.  Now all subsequent CacheLineTables will use the previous
fileStore.

Does anyone else agree with my reading of this code?