Andrew Haley pointed out that gcj-dbtool -p doesn't work correctly, this is due
to a wrong macro LIBGCJ_DEFAULT_DATABASE_TAIL, having a wrong gcj subdirectory
encoded. The LIBGCJ_DEFAULT_DATABASE macro is already using the path.

Tested that the gcj-dbtool built with this patch uses the correct path.

Ok for the trunk and the 4.3 branch?

  Matthias